If it were possible for us to have so deep an insight into a man's character as shown both in inner and in outer actions, that every, even the least, incentive to these actions and all external occasions which affect them were so known to us that his future conduct could be predicted with as great a certainty as the occurrence of a solar or lunar eclipse, we could nevertheless still assert that the man is free.

An organized product of nature is that in which all the parts are mutually ends and means.

Thinking in pictures precedes thinking in words.

Nature, when left to universal laws, tends to produce regularity out of chaos.

Experience without theory is blind, but theory without experience is mere intellectual play.

We assume a common sense as the necessary condition of the universal communicability of our knowledge, which is presupposed in every logic and every principle of knowledge that is not one of skepticism.

Among all nations, through the darkest polytheism glimmer some faint sparks of monotheism.