Quite often good things have hurtful consequences. There are instances of men who have been ruined by their money or killed by their courage.

What we know is not capable of being otherwise; of things capable of being otherwise we do not know, when they have passed outsideour observation, whether they exist or not. Therefore the object of knowledge is of necessity. Therefore it is eternal; for things that are of necessity in the unqualified sense are all eternal; and things that are eternal are ungenerated and imperishable.

Man is a goal-seeking animal. His life only has meaning if he is reaching out and striving for his goals.

The duty of rhetoric is to deal with such matters as we deliberate upon without arts or systems to guide us, in the hearing of persons who cannot take in at a glance a complicated argument or follow a long chain of reasoning.

All things are full of gods.

One who faces and who fears the right things and from the right motive, in the right way and at the right time, posseses character worthy of our trust and admiration.

My lectures are published and not published; they will be intelligible to those who heard them, and to none beside.