Knowledge is a process of piling up facts; wisdom lies in their simplification.

We must use time creatively, in the knowledge that the time is always ripe to do right.

I subject myself to self-purification and to endless self-analysis; I question and soul-search constantly into myself to be as certain as I can that I am fulfilling the true meaning of my work, that I am maintaining my sense of purpose, that I am holding fast to my ideals, that I am guiding my people in the right direction.

The one exclusive sign of thorough knowledge is the power of teaching.

Knowing yourself is the beginning of all wisdom.

Educating the mind without educating the heart is no education at all.

Each man judges well the things he knows.

"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away."

Share your knowledge. It is a way to achieve immortality.

Knowledge is like the great army that will help us crush the forces of our own faults.

A little knowledge is dangerous. So is a lot.

It is the supreme art of the teacher to awaken joy in creative expression and knowledge.

The most important motive for work in school and in life is pleasure in work, pleasure in its result and the knowledge of the value of the result to the community.

The only source of knowledge is experience.

Beauty is about being comfortable in your own skin. It’s about knowing and accepting who you are.

The most valuable thing a teacher can impart to children is not knowledge and understanding per se but a longing for knowledge and understanding, and an appreciation for intellectual values, whether they be artistic, scientific, or moral.

For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.

I have no special talent. I am only passionately curious.

Information is not knowledge.

I was brought up to try to see what was wrong and right it. Since I am a writer, writing is how I right it.

Everyone needs a coach. It doesn't matter whether you're a basketball player, a tennis player, a gymnast or a bridge player.

Understanding science and pushing the boundaries of science is what makes me immensely satisfied.

Expectations are a form of first-class truth: If people believe it, it's true.

I spend a lot of time reading.