Waste of time is the most extravagant and costly of all expenses.

I would define boastfulness to be the pretension to good which the boaster does not possess.

Love is the affection of a mind that has nothing better to engage it.

Superstition would seem to be simply cowardice in regard to the supernatural.

True friends visit us in prosperity only when invited, but in adversity they come without invitation.

Alcmaeon was the first to define the difference between man and animals, saying that man differs from the latter in the fact that he alone has the power of understanding.

An orator without judgment is a horse without a bridle.