It is difficult to achieve a spirit of genuine cooperation as long as people remain indifferent to the feelings and happiness of others.

The greatest sin is to think yourself weak.

The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.

He who angers you conquers you.

Great books help you understand, and they help you feel understood.

Sometimes you need to talk with yourself.

Glory is fleeting, but obscurity is forever.