New inventions can and will be made; however, nothing new can be thought of that concerns moral man. Everything has already been thought and said which at best we can express in different forms and give new expressions to.

But the valid issue is the extent to which man knows how to form and master the material at his command.

The greatest happiness for the thinking person is to have explored the explorable and to venerate in equanimity that which cannotbe explored.

The hardest thing is to see what's under your very eyes.

We're only really thinking when we can't think out fully what we are really thinking about!

How can we know ourselves? Never by reflection, but only through action. Begin at once to do your duty and immediately you will know what is inside you.

Who are you then?" "I am part of that power which eternally wills evil and eternally works good.