What then do you call your soul? What idea have you of it? You cannot of yourselves, without revelation, admit the existence within you of anything but a power unknown to you of feeling and thinking.
Voltaire

I am neither bitter nor cynical but I do wish there was less immaturity in political thinking.
Franklin D. Roosevelt

Positive thinking will let you do everything better than negative thinking will.
Zig Ziglar

Ambition never is in a greater hurry that I; it merely keeps pace with circumstances and with my general way of thinking.
Napoleon Bonaparte

Take time to deliberate, but when the time for action has arrived, stop thinking and go in.
Napoleon Bonaparte

I don't think the human mind can comprehend the past and the future. They are both just illusions that can manipulate you into thinking theres some kind of change.
Bob Dylan

I worry that the person who thought up Muzak may be thinking up something else.
Lily Tomlin

Very little is needed to make a happy life; it is all within yourself, in your way of thinking.
Marcus Aurelius

We ought to do good to others as simply as a horse runs, or a bee makes honey, or a vine bears grapes season after season without thinking of the grapes it has borne.
Marcus Aurelius

There is no expedient to which a man will not go to avoid the labor of thinking.
Thomas A. Edison

The best thinking has been done in solitude. The worst has been done in turmoil.
Thomas A. Edison

My thought is me: that is why I cannot stop thinking. I exist because I think I cannot keep from thinking.
Jean-Paul Sartre

I watched the Indy 500, and I was thinking that if they left earlier they wouldn't have to go so fast.
Steven Wright

Thinking is more interesting than knowing, but less interesting than looking.
Johann Wolfgang von Goethe

Thinking is easy, acting is difficult, and to put one's thoughts into action is the most difficult thing in the world.
Johann Wolfgang von Goethe

But I was thinking of a way To multiply by ten, And always, in the answer, get The question back again.
Lewis Carroll

We get into the habit of living before acquiring the habit of thinking. In that race which daily hastens us towards death, the body maintains its irreparable lead.
Albert Camus

It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.
Stephen Hawking

When people talk of the freedom of writing, speaking or thinking I cannot choose but laugh. No such thing ever existed. No such thing now exists; but I hope it will exist. But it must be hundreds of years after you and I shall write and speak no more.
John Adams

I like thinking big. If you're going to be thinking anything, you might as well think big.
Donald Trump