Where id was, there ego shall be.

The interpretation of dreams is the royal road to the knowledge of the unconscious activities of the mind.

The ego is not master in its own house.

Love and work — work and love, that's all there is.

The wise man is free from passions, not because he does not feel, but because his judgments are correct.

-- Chrysippus of Soli

The pleasant life is produced not by endless drinking and revelry but by sober reasoning.

-- Epicurus

Reason is, and ought only to be the slave of the passions, and can never pretend to any other office than to serve and obey them.

-- David Hume

What is rational is real; and what is real is rational.

-- Georg Wilhelm Friedrich Hegel

Religion is the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people.

-- Karl Marx

Good sense is the most evenly distributed thing in the world.

-- René Descartes