All our knowledge originates in opinion.

Learning never exhausts the mind.

Simplicity is the ultimate sophistication.

A beautiful body perishes, but a work of art dies not.

To make a perfume, take some rose water and wash your hands in it, then take a lavender flower and rub it with your palms, and you will achieve the desired effect

Being willing is not enough. We must do.

Learning is the only thing the mind never exhausts, never fears, and never regrets.

There are three classes of people: those who see, those who see when they are shown, those who do not see.

Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works.

Whatever you do in life, if you want to be creative and intelligent, and develop your brain, you must do everything with the awareness that everything, in some way, connects to everything else.

When you put your hand in a flowing stream, you touch the last that has gone before and the first of what is still to come.

Repent means to renounce sin . . .and by God’s grace to fill my mind with things that honor Him.

He who fails to understand that one should prepare for every single blessing will reap the problems connected with lack of preparation before the blessing.

To live is to think.

During the days in detention, I thought most about the moon.

The president [Barack Obama] laid out his vision for foreign policy in a way that we hadn't heard before. And it could be summed up, I think, in two words - realistic idealism.

I understand the formula that producers hire directors and directors are hired to direct and actors are hired to act. I don't have any conflict with any directors because I know they're the boss.

The thing I don't like about L.A. is that it's very industry-focused. That's not bad for kids. It's not hedonistic or anything, not any more shallow than anybody in the Midwest. It's not that.

A woman is always a mystery: one must not be fooled by her face and her hearts inspiration.

It is always sad to write about prejudice, but sometimes when we see it being played out in the lives of fictional characters, we can recognize it in our own lives.

The nature of the shuttle was, we couldn't put a crew escape system in it.