More pernicious nonsense was never devised by man than treaties of commerce.

Never apologize for showing feeling. When you do so, you apologize for the truth.

The secret of success is constancy of purpose.

Cleanliness and order are not matters of instinct; they are matters of education, and like most great things, you must cultivate a taste for them.

Nurture your mind with great thoughts, for you will never go any higher than you think.

Action may not always bring happiness; but there is no happiness without action.

Courage is fire, and bullying is smoke.

One secret of success in life is for a man to be ready for his opportunity when it comes.

Time is precious, but truth is more precious than time.

Never complain and never explain.

Finality is not the language of politics.

This will be our reply to violence:to make music more intensely, more beautifully, more devotedly than ever before.

They had survived, when so many had not. And no one ­else could understand what it was like to bear it, unless they had lost as much.

time never heals everything in life, but memories do

We would rather be feared than respected.

I have an affinity for Africa, especially East Africa, and Kansas looks very much like that.

Stress is an alarm clock that lets you know you're attached to something not true for you.

I'm trying to put the ridiculousness to bed. The president of the United States is the president of the United States.

The French are very individualistic.

Now that everyone is reinventing and innovating, advantage goes to those who keep at it. We need to greet even success with humility.

Gliders, sail planes, they're wonderful flying machines. It's the closest you can come to being a bird.