Just as the body has its progress and decadence, so also has the mind, and, therefore, the mind is not the soul, because the soul can neither decay nor degenerate.

True progress is slow but sure.

Every attempt to solve the laws of causation, time, and space would be futile, because the very attempt would have to be made by taking for granted the existence of these three.

The less passion there is, the better we work. The calmer we are the better for us and the more the amount of work we can do.

Materialism prevails in Europe today. You may pray for the salvation of the modern sceptics, but they do not yield, they want reason.

None deserves liberty who is not ready to give liberty

You cannot believe in God until you believe in yourself.