Wonder, rather than doubt, is the root of knowledge.

An ounce of action is worth a ton of theory.

The average man, who does not know what to do with his life, wants another one which will last forever.

The unfed mind devours itself.

The time you enjoy wasting is not wasted time.

To fear love is to fear life, and those who fear life are already three parts dead.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.

A myth is a religion in which no one any longer believes.

It's choice - not chance - that determines your destiny.

Remember that as a teenager you are at the last stage of your life when you will be happy to hear that the phone is for you.

Silence is one of the hardest arguments to refute.

Each morning when I open my eyes I say to myself: I, not events, have the power to make me happy or unhappy today.

Talking much about oneself can also be a means to conceal oneself.

Be a good listener. Your ears will never get you in trouble.

Anyone who can handle a needle convincingly can make us see a thread which is not there.

Spare no expense to save money on this one.

One of the things I learned the hard way was that it doesn't pay to get discouraged. Keeping busy and making optimism a way of life can restore your faith in yourself.

Rules are just helpful guidelines for stupid people who can't make up their own minds.

History is more or less bunk.

USA Today has come out with a new survey - apparently, three out of every four people make up 75% of the population.