Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.

The things that we love tell us what we are.

To pretend angels do not exist because they are invisible is to believe we never sleep because we don't see ourselves sleeping.

The greatest kindness one can render to any man consists in leading him from error to truth.

We must love them both, those whose opinions we share and those whose opinions we reject, for both have labored in the search for truth, and both have helped us in finding it.

Man cannot live without joy; therefore when he is deprived of true spiritual joys it is necessary that he become addicted to carnal pleasures.

For those with faith, no evidence is necessary; for those without it, no evidence will suffice.

If you can live amid injustice without anger, you are immoral as well as unjust.

To love is to will the good of the other.

Nothing created has ever been able to fill the heart of man. God alone can fill it infinitely.

How can we live in harmony? First we need to know we are all madly in love with the same God.

I'm scared David""That's good, because there's lots to be afraid of

Your vision at a leadership level needs to be more global and selfless, it needs to go beyond you. Reflect and project your dream for a perfect world, even if you can only make it a great world.

I like to go to work, and also, I don't have any kids. I don't have any hobbies. I don't like to travel. So going to work is kind of it.

Learning gives creativity Creativity leads to thinking Thinking provides knowledge Knowledge makes you great.

If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. Sailors on a becalmed sea, we sense the stirring of a breeze.

The reality you experience is a reflection of what you believe is most possible.

He that preaches war is the devil's chaplain.

I come alive at night. I'm such a night owl.

The body on the ground is nothing more than a shell, a husk, and I am filled with a sense of peace. Yes, I think. Yes. This is what I want to be. An instrument of mercy, not vengeance.

Immigration has been [Donald] Trump's signature issue throughout his entire presidential campaign, and his supporters love him for it.