I feel a complete thirst for knowledge and an eager unrest to go further in it as well as satisfaction at every acquisition. There was a time when I believed that this alone could constitute the honor of mankind, and I had contempt for the ignorant rabble who know nothing.

Reason in a creature is a faculty of widening the rules and purposes of the use of all its powers far beyond natural instinct; it acknowledges no limits to its projects. Reason itself does not work instinctively, but requires trial, practice, and instruction in order gradually to progress from one level of insight to another.

I feel a complete thirst for knowledge and an eager unrest to go further in it as well as satisfaction at every acquisition. There was a time when I believed that this alone could constitute the honor of mankind, and I had contempt for the ignorant rabble who know nothing.

How then is perfection to be sought? Wherein lies our hope? In education, and in nothing else.

Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.

When I could have used a wife, I could not support one; and when I could support one, I no longer needed any

If a man is often the subject of conversation he soon becomes the subject of criticism.