The quiet conscience is an invention of the devil.

It's not enough merely to exist. Every man has to seek in his own way to make his own self more noble and to relize his own true worth.

In the hearts of people today there is a deep longing for peace. When the true spirit of peace is thoroughly dominant, it becomes an inner experience with unlimited possibilities. Only when this really happens - when the spirit of peace awakens and takes possession of men's hearts, can humanity be saved from perishing.

Do something wonderful, people may imitate it.

The demands of Jesus are difficult just because they require us to do something extraordinary. At the same time he asks us to regard these as something usual, ordinary.

It doesn't matter if an animal can reason. It matters only that it is capable of suffering and that is why I consider it my neighbor.

In case my life should end with the cannibals, I hope they will write on my tombstone, 'We have eaten Dr. Schweitzer. He was good to the end.'