To believe that if only we had this or that we would be happy, or to pursue any excessive desire, diverts us from seeing that happiness depends on an adequate self.

There is always a chance that he who sets himself up as his brother's keeper will end up by being his jail-keeper.

There is perhaps no better way of measuring the natural endowment of a soul than by its ability to transmute dissatisfaction into a creative impulse.

In human affairs every solution serves only to sharpen the problem, to show us more clearly what we are up against. There are no final solutions.

Creativity is the ability to introduce order into the randomness of nature.

A heresy can spring only from a system that is in full vigor.

The greatest weariness comes from work not done.