“Ordinarily he was insane, but he had lucid moments when he was merely stupid.”

“The history of Immanuel Kant's life is difficult to portray, for he had neither life nor history. He led a mechanical, regular, almost abstract bachelor existence in a little retired street of Königsberg, an old town on the north-eastern frontier of Germany. I do not believe that the great clock of the cathedral performed in a more passionless and methodical manner its daily routine than did its townsman, Immanuel Kant. Rising in the morning, coffee-drinking, writing, reading lectures, dining, walking, everything had its appointed time, and the neighbors knew that it was exactly half-past three o'clock when Kant stepped forth from his house in his grey, tight-fitting coat, with his Spanish cane in his hand, and betook himself to the little linden avenue called after him to this day the "Philosopher's Walk." Summer and winter he walked up and down it eight times, and when the weather was dull or heavy clouds prognosticated rain, the townspeople beheld his servant, the old Lampe, trudging anxiously behind Kant with a big umbrella under his arm, like an image of Providence.What a strange contrast did this man's outward life present to his destructive, world-annihilating thoughts! In sooth, had the citizens of Königsberg had the least presentiment of the full significance of his ideas, they would have felt far more awful dread at the presence of this man than at the sight of an executioner, who can but kill the body. But the worthy folk saw in him nothing more than a Professor of Philosophy, and as he passed at his customary hour, they greeted him in a friendly manner and set their watches by him.”

“He only profits from praise who values criticism.”

“With his nightcaps and the tatters of his dressing-gown he patches up the gaps in the structure of the universe.”

“In dark ages people are best guided by religion, as in a pitch-black night a blind man is the best guide; he knows the roads and paths better than a man who can see. When daylight comes, however, it is foolish to use blind, old men as guides.”

“God will forgive me. It's his job." Heine said this on his deathbed (1856). Hilarious. He must have thought that up years before and counted the seconds to use it.”

“Mine is a most peaceable disposition. My wishes are: a humble cottage with a thatched roof, but a good bed, good food, the freshest milk and butter, flowers before my window, and a few fine trees before my door; and if God wants to make my happiness complete, he will grant me the joy of seeing some six or seven of my enemies hanging from those trees. Before death I shall, moved in my heart, forgive them all the wrong they did me in their lifetime. One must, it is true, forgive one's enemies-- but not before they have been hanged.”