He who can destroy a thing, can control a thing.
By three methods we may learn wisdom: first, by reflection which is noblest; second, by imitation, which is the easiest; and third, by experience, which is the bitterest.
You are the bows from which your children as living arrows are sent forth.
It is not the strength, but the duration, of great sentiments that makes great men.
Wise men speak because they have something to say; Fools because they have to say something.
Drop the idea that you are Atlas carrying the world on your shoulders. The world would go on even without you. Don't take yourself so seriously.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
When prosperity comes, do not use all of it.
Science is organized knowledge. Wisdom is organized life.
Moderation in temper is always a virtue; but moderation in principle is always a vice.
Adapt what is useful, reject what is useless, and add what is specifically your own.
A perfection of means, and confusion of aims, seems to be our main problem.
The first thing you'll have to do, is the last thing you wished.
If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.
Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.
Share our similarities, celebrate our differences.
Between stimulus and response there is a space. In that space is our power to choose our response. In our response lies our growth and our freedom.
Your visions will become clear only when you can look into your own heart. Who looks outside, dreams; who looks inside, awakes.
The only limit to our realization of tomorrow will be our doubts of today.
We thought that we had the answers, it was the questions we had wrong.
Immoderate desire is the mark of a child, not a man.