Age is whatever you think it is. You are as old as you think you are.
Muhammad Ali

Silence is golden when you can't think of a good answer.
Muhammad Ali

Those who know how to think need no teachers.
Mohandas Gandhi

What do I think of Western civilization? I think it would be a very good idea.
Mohandas Gandhi

Happiness is when what you think, what you say, and what you do are in harmony.
Mohandas Gandhi

The main purpose of life is to live rightly, think rightly, act rightly. The soul must languish when we give all our thought to the body.
Mohandas Gandhi

Music is everybody's possession. It's only publishers who think that people own it.
John Lennon

Our society is run by insane people for insane objectives. I think we're being run by maniacs for maniacal ends and I think I'm liable to be put away as insane for expressing that. That's what's insane about it.
John Lennon

We've got this gift of love, but love is like a precious plant. You can't just accept it and leave it in the cupboard or just think it's going to get on by itself. You've got to keep watering it. You've got to really look after it and nurture it.
John Lennon

It was like being in the eye of a hurricane. You'd wake up in a concert and think, Wow, how did I get here?
John Lennon

Women don't want to hear what you think. Women want to hear what they think - in a deeper voice.
Bill Cosby

I think this is the most extraordinary collection of talent, of human knowledge, that has ever been gathered at the White House - with the possible exception of when Thomas Jefferson dined alone.
John F. Kennedy

I think 'Hail to the Chief' has a nice ring to it.
John F. Kennedy

I don't think the intelligence reports are all that hot. Some days I get more out of the New York Times.
John F. Kennedy

Any fact facing us is not as important as our attitude toward it, for that determines our success or failure. The way you think about a fact may defeat you before you ever do anything about it. You are overcome by the fact because you think you are.
Norman Vincent Peale

Four things for success: work and pray, think and believe.
Norman Vincent Peale

Stand up to your obstacles and do something about them. You will find that they haven't half the strength you think they have.
Norman Vincent Peale

We've all heard that we have to learn from our mistakes, but I think it's more important to learn from successes. If you learn only from your mistakes, you are inclined to learn only errors.
Norman Vincent Peale

I care not what others think of what I do, but I care very much about what I think of what I do! That is character!
Theodore Roosevelt

I think there is only one quality worse than hardness of heart and that is softness of head.
Theodore Roosevelt