He who is firm in will molds the world to himself.

We do not act because we know, but we know because we are called upon to act; the practical reason is the root of all reason.

What sort of philosophy one chooses depends on what sort of person one is.

Upon the progress of knowledge the whole progress of the human race is immediately dependent: he who retards that, hinders this also.

To those who do not love God, all things must work together immediately for pain and torment, until, by means of the tribulation, they are led to salvation at last.

I am satisfied with, and stand firm as a rock on the belief that all that happens in God's world is for the best, but what is merely germ, what blossom and what fruit I do not know.

There are two great classes of men: the people and the scholars, the men of science. For the former, nothing exists but that which directly leads to action. It is for the latter to see beyond. They are the free artists who create the future and its history, the conscious architects of the world.