The most important knowledge is that which guides the way you lead your life.

The only absolute knowledge attainable by man is that life is meaningless.

I only hope that when I am free, as they are free to go in quest, of the knowledge beyond the bounds of life, it may not seem better to me to rest.

What's done cannot be undone.

The true office of any faith is to give life a meaning which death cannot destroy.

All the variety, all the charm, all the beauty of life is made up of light and shadow.