Mastering others is strength. Mastering yourself is true power.

Lao Tzu

Adversity is the first path to truth.

Lord Byron

I have learned to use the word impossible with the greatest caution.

Werner von Braun

We all live under the same sky, but we don't all have the same horizon.

Konrad Adenauer

Simplicity and complexity need each other.

John Maeda

If you ever find happiness by hunting for it, you will find it as the old woman did her lost spectacles - on her own nose all the time.

Josh Billings