If you want something new, you have to stop doing something old.

Let us, then, be up and doing, With a heart for any fate; Still achieving, still pursuing, Learn to labor and to wait.

The wise man does at once what the fool does finally.

A happy life consists not in the absence, but in the mastery of hardships.

I think that, as life is action and passion, it is required of a man that he should share the passion and action of his time at peril of being judged not to have lived.

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

Innovation is the specific instrument of entrepreneurship…the act that endows resources with a new capacity to create wealth.

The difference between what we do and what we are capable of doing would suffice to solve most of the world’s problems.

Next to the assumption of power is the responsibility of relinquishing it.

A fast way to demolish relationships, shatter credibility and disrespect yourself is by not following through when you say you are going to do something.

A man must stand erect, not be kept erect by others.