A man lives by believing something: not by debating and arguing about many things.

No great man lives in vain. The history of the world is but the biography of great men.

As a first approximation, I define "belief" not as the object of believing (a dogma, a program, etc.) but as the subject's investment in a proposition, the act of saying it and considering it as true.

The first of all gospels is, that no lie lives forever.

Give me a man who sings at his work.

The man who cannot wonder is but a pair of spectacles behind which there is no eye