We begin every act of choice and avoidance from pleasure, and it is to pleasure that we return using our experience of pleasure as the criterion of every good thing.

All other love is extinguished by self-love; beneficence, humanity, justice, philosophy, sink under it.

We begin every act of choice and avoidance from pleasure, and it is to pleasure that we return using our experience of pleasure as the criterion of every good thing.

It is not so much our friends' help that helps us, as the confidence of their help.

Earthquakes may be brought about because wind is caught up in the earth, so the earth is dislocated in small masses and is continually shaken, and that causes it to sway.

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

It is impossible for someone to dispel his fears about the most important matters if he doesn't know the nature of the universe but still gives some credence to myths. So without the study of nature there is no enjoyment of pure pleasure.