In action a great heart is the chief qualification. In work, a great head.

Each day is a little life: every waking and rising a little birth, every fresh morning a little youth, every going to rest and sleep a little death.

Man is never happy, but spends his whole life in striving after something which he thinks will make him so.

Men are a thousand times more intent on becoming rich than on acquiring culture, though it is quite certain that what a man IS contributes more to his happiness than what he HAS.

Philosophy ... is a science, and as such has no articles of faith; accordingly, in it nothing can be assumed as existing except what is either positively given empirically, or demonstrated through indubitable conclusions.

Style is the physiognomy of the mind. It is more infallible than that of the body. To imitate the style of another is said to be wearing a mask. However beautiful it may be, it is through its lifelessness insipid and intolerable, so that even the most ugly living face is more engaging.

All religions promise a reward beyond life, in eternity, for excellences of the will or heart, but none for excellences of the head or understanding.