Doubt is uncomfortable, certainty is ridiculous.

We cannot wish for that we know not.

Sensual pleasure passes and vanishes, but the friendship between us, the mutual confidence, the delight of the heart, the enchantment of the soul, these things do not perish and can never be destroyed.

The Jews have always been waiting for a Messiah, but their Messiah is for them only, not for us, a Messiah ho will give them mastery over the Christians.

You have no control over the hand that life deals you, but how you play that hand is entirely up to you.

The pursuit of pleasure must be the goal of every rational person.

Every one should be his own physician. We ought to assist, and not to force nature. Eat with moderation...Nothing is good for the body but what we can digest. What medicine can procure digestion? Exercise. What will recruit strength? Sleep.