Do not pray for an easy life, pray for the strength to endure a difficult one.

All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.

Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more

Whatever it is you're seeking won't come in the form you're expecting.

There is no question climate change is happening. The only arguable point is what part humans are playing in it.

Unfortunately, the clock is ticking, the hours are going by. The past increases, the future recedes. Possibilities decreasing, regrets mounting.

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

Knowledge speaks, but wisdom listens

Almost every wise saying has an opposite one, no less wise, to balance it.

Forget not that the earth delights to feel your bare feet and the winds long to play with your hair.

But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.

The trouble with most of us is that we would rather be ruined by praise than saved by criticism.

We may encounter many defeats but we must not be defeated.

The simple things are also the most extraordinary things, and only the wise can see them.

If you don't stand for something you will fall for anything.

Better mad with the rest of the world than wise alone.

Resist much. Obey little.

Respect yourself if you would have others respect you.

The weak can never forgive. Forgiveness is the attribute of the strong.

If you do not know the laws of right conduct, you cannot form your character.

All the great things are simple, and many can be expressed in a single word: freedom; justice; honor; duty; mercy; hope.