Immanuel Kant

"One who makes himself a worm cannot complain afterwards if people step on him."

"A person who already displays … cruelty to animals is also no less hardened towards men. We can already know the human heart, even in regard to animals."

"Psychologists have hitherto failed to realize that imagination is a necessary ingredient of perception itself."

"A spurious axiom of the first class is: Whatever is, is somewhere and sometime."

"they cudgel their brains with absurd questions, such as, for instance, why God did not make the world many centuries earlier. They persuade themselves that it is easy to conceive, to be sure, how God …"

"England and France, the two most civilized nations on earth, who are in contrast to each other because of their different characters, are, perhaps chiefly for that reason, in constant feud with one an…"

"hat alone has value is the use to which life is put and the end to which it is directed. The value of life has to be created by man, it cannot be obtained through luck but only through wisdom. He who …"

"As the analysis of a substantial composite terminates only in a part which is not a whole, that is, in a simple part, so synthesis terminates only in a whole which is not a part, that is, the world."