If you can't explain it to a six year old, you don't understand it yourself.

Gravitation is not responsible for people falling in love.

Life is like riding a bicycle. To keep your balance, you must keep moving.

Life isn't worth living, unless it is lived for someone else.

Imagination is everything. It is the preview of life's coming attractions.

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

Strive not to be a success, but rather to be of value.

The true sign of intelligence is not knowledge but imagination.

God is clever but not dishonest.

Try not to become a man of success but rather a man of value.

Weakness of attitude becomes weakness of character.

Having books standing on a shelf in a room is like having completely different worlds at the ready, waiting to be explored.

Socrates made people face their hypocrisy. He had to die.

The only way to have a friend is to be one.

Repentance is a result of God's kindness, not a prerequisite to it.

If you could relive one year in your life, which one would it be? [...] The upcoming one.

Our enemies' opinion of us comes closer to the truth than our own.

You have to do what you fear, otherwise fear is in charge.

Tell the people not to cry. Tell them to be happy.

That's absolutely correct and in addition to that life just isn't an accident of the laws of physics. There's a long list of experiments that suggest just the opposite.

Ah! never shall the land forget How gushed the life-blood of her brave -