Immanuel Kant – a summary

Immanuel Kant was born April 22, 1724, in the Baltic city of Königsberg, then the capital of the isolated German province of East Prussia (now Kaliningrad in Russia). Kant’s ancestors had emigrated from Scotland in the preceding century and may well have been related to the notorious seventeenth-century Scottish preacher Andrew Cant, who is said to have been the origin of the verb “to cant” with regard to the use of jargon – a family trait which was to reappear with a vengeance in the philosopher.

KantAt the time of Kant’s birth East Prussia was recovering from the devastation of war and plague, which had reduced the population by over half. Kant grew up in an atmosphere of pious poverty. He was the fourth child of the family, which eventually included five sisters and one other brother. Kant’s Scottish father was a cutter of leather straps who jocularly claimed that he “could never make both ends meet” either at home or at work. Kant always remained respectful of his likable but financially harassed father, and as a child is said to have enjoyed watching him deftly cutting up pieces of leather for harnesses. Yet according to the philosophical psychologist Ben-Ami Scharfstein, in the light of his father’s dexterity “Kant’s great clumsiness with his hands is therefore noteworthy.”

Frau Kant

Whether or not this is the case, and what precisely it might be noteworthy of, the main early influence in Kant’s life was undoubtedly his mother. Frau Kant was a wholly uneducated German woman who is said to have possessed great “natural intelligence.” It was this which particularly influenced her son Immanuel – or Manelchen as she called him (“Little Manny”). Kant’s mother would take him for walks in the countryside and tell him the names of the plants and flowers. At night she would show him the stars, naming them and their constellations. She was a pious woman, and her loving but austere ways also helped shape her son’s moral character. This dual insistence on facts and moral obligation was to remain with Kant throughout his life and played a leading role in his philosophy.

Kant’s most celebrated remark, made over fifty years later, harks directly back to these early days with his mother: “The starry heavens above and the moral law within fill the mind with an ever new and increasing admiration and awe, the more often and the more steadily we reflect.”

Kant was brought up in a strict Pietist atmosphere and from age eight until sixteen went to the local Pietist school. Here his exceptional intelligence and keen thirst for learning quickly grew irked with the endless religious instruction. This dislike of formal religion was to remain with him for the rest of his days (in mature life he never attended church). Despite this, Kant retained much of the Pietist outlook, with its belief in a simple way of life and adherence to strict morality.

In 1737 Kant’s mother died and received a pauper’s burial. Kant was 13 at the time and has indicated that he experienced his first sexual stirrings around this period. Psychologists have suggested that the loss of his beloved mother at this stage of puberty caused him to feel guilty and repress his sexual feelings. Either this or they simply withered away. Whatever the cause, from now on Kant was to live a life of sexual repression which assumed heroic proportions.


Immanuel KantAt the age of eighteen Kant was admitted to the University of Königsberg as a theological student. Initially he was given financial assistance by the local Pietist church, but he also helped support himself by tutoring some of his more backward colleagues. He soon grew bored with theology and began showing a strong interest in mathematics and physics. He read Newton, who opened his eyes to science and the great advances being made in all parts of it, from astronomy to zoology. Science based on experiment could only be accommodated in an empiricist philosophy, that is, one which bases our knowledge of the world on experience. In 1746, when Kant was twenty-two, his father died. Kant and his five younger sisters were left penniless. The younger of these sisters were taken in by a Pietist family while the older ones went to work as chambermaids. Kant applied unsuccessfully for a job at a local school and was forced to leave the university without taking a degree.

The Sister

For the next nine years Kant supported himself as a tutor to wealthy families in the surrounding countryside. For a while he was employed by the Count and Countess Keyserling (the aristocratic family which was later to produce the pseudophilosopher Hermann Keyserling, whose uplifting but bogus ideas were to prove such a comfort to disillusioned society matrons after World War One).

Whenever Kant had a little extra cash he would send some of it to his less fortunate sisters, a habit he continued throughout his later life. His five sisters were to continue living in Königsberg (a city with just fifty thousand inhabitants) throughout the whole of Kant’s life. Yet he saw none of them for over twenty-five years. When one of his sisters finally came to visit him he did not even recognize her. After it was explained to him who she was, he apologised to the rest of the company for her lack of culture. Kant may not have been a social snob, but he was renowned for his inability to tolerate fools. Even in his own family, it would seem.

Yet this incident raises a curious point. Kant’s sister must surely have borne more than a passing resemblance to their mother, both intellectually and physically. She would even have been around the same age as Kant’s mother when she brought him up. Does this mean that Kant’s celebrated love for his mother had become so deep that he no longer recognised it? Suggestion has been made that Kant unconsciously resented the repressive nexus – facts, morality, sexual extinction – imposed on him by his mother. His inability to recognise his sister (or indeed have anything to do with her) may well have followed from this, but we have no way of knowing. (Kant’s sheer lack of life has perversely attracted far more attention from psychologists than the comparatively normal life lived by other philosophers.)

Read more in Kant: Philosophy In An Hour published by Harper Press.