I know what I can know, and am not troubled about what I cannot know.

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

By philosophy the mind of man comes to itself, and from henceforth rests on itself without foreign aid, and is completely master of itself, as the dancer of his feet, or the boxer of his hands.

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

The schools must fashion the person, and fashion him in such a way that he simply cannot will otherwise than what you wish him to will.

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.

Nothing is more destructive of individual character than for a man to lose all faith in his own abilities for the prosecution of his work.

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.

A man can do what he ought to do; and when he says he cannot, it is because he will not.

My mind can take no hold on the present world, nor rest in it a moment, but my whole nature rushes onward with irresistible force towards a future and better state of being.

God is not the mere dead conception to which we have thus given utterance, but he is in himself pure Life.

I love God, Jesus Christ, my three children, mother, father, brother, sisters, family in general, my pets, my students, and true friends.

Truth evolves incessantly. If it does not, it's no truth at all.

The money you make is a symbol of the value you create.

Do human beings have an infinite amount of energy with which to resist death? It is kinder and more accurate to say that they fought until they had no more fight left in them.

Expect neither reward nor beatitude. Return noble waves for ignoble.

I am Hualapai. We are located in Northern Arizona, at the Grand Canyon. We own the Skywalk area.

I'm not the kind to go out and tell people 'Oh yeah I'm a gold medalist.'

The only means to well-being is to increase the quantity of products. This is what business aims at.

How poor is the wisdom of men, and how uncertain their forecast!