Optimism is an alienated form of faith, pessimism an alienated form of despair.

The danger of the past was that men became slaves. The danger of the future is that man may become robots.

Education makes machines which act like men and produces men who act like machines.

Society must be organized in such a way that mans social, loving nature is not separated from his social existence, but becomes one with it.

Close your eyes, let your spirit start to soar, and you'll live as you've never lived before.

In the dream, sheltered from the noise, the subject expressed a judgment much more on the mark than that manifested in wakefulness.

There is no meaning to life except the meaning man gives his life by the unfolding of his powers.