Grief is the agony of an instant. The indulgence of grief the blunder of a life.

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.

Il n'y a de réalité que dans l'action.(There is no reality except in action.)

Never underestimate the power within you, because you may be the only person in the entire universe to solve a specific problem.

Money cannot buy peace of mind. It cannot heal ruptured relationships, or build meaning into a life that has none.

All wages are based primarily on productive power. Anything else would be charity.

On the other hand, pot opens windows and doors that you may not be able to get through any other way.

Science, almost from its beginnings, has been truly international in character. National prejudices disappear completely in the scientist's search for truth.

Ultimately, we'll help the people we discriminate against if we try to understand more about them; genetics will lead to a world where there is a sympathy for the underdog.

As he that fears God fears nothing else, so he that sees God sees everything else.

I don't think about taking a risk. I think about how far can I go. How can I make myself. What are the risks I must create.

Really great design is hard. Good is the enemy of great. Competent design is not too much of a stretch. But if you are trying to do something new, you have challenges on so many axes.