Thanks be to blessed Nature that she has made what is necessary easy to obtain, and what is not easy unnecessary.

Not what we have But what we enjoy, constitutes our abundance.

All sensations are true; pleasure is our natural goal.

Pleasure is the beginning and the end of living happily. Epicurus taught: Pleasure, defined as freedom from pain, is the highest good.

We must consider both the ultimate end and all clear sensory evidence, to which we refer our opinions; for otherwise everything will be full of uncertainty and confusion.

The words of that philosopher who offers no therapy for human suffering are empty and vain.

When someone admits one and rejects another which is equally in accordance with the appearances, it is clear that he has quitted all physical explanation and descended into myth.