To die is only to be as we were before we were born; yet no one feels any remorse, or regret, or repugnance, in contemplating this last idea.

Vulgar prejudices are those which arise out of accident, ignorance, or authority; natural prejudices are those which arise out of the constitution of the human mind itself.

Mankind are a herd of knaves and fools. It is necessary to join the crowd, or get out of their way, in order not to be trampled to death by them.

Those people who are always improving never become great. Greatness is an eminence, the ascent to which is steep and lofty, and which a man must seize on at once by natural boldness and vigor, and not by patient, wary steps.

When you find out a man's ruling passion, beware of crossing him in it.

No man can thoroughly master more than one art or science.

Common sense, to most people, is nothing more than their own opinions.