If one felt successful, there'd be so little incentive to be successful.

Our designs go wrong because our feelings of contentment are woven from fine and unexpected filaments.

The more closely we analyze what we consider 'sexy,' the more clearly we will understand that eroticism is the feeling of excitement we experience at finding another human being who shares our values and our sense of the meaning of existence.

We study biology, physics, movements of glaciers... Where are the classes on envy, feeling wronged, despair, bitterness.