Be true to your work, your word, and your friend.

Try to keep your soul young and quivering right up to old age.

A will finds a way.

My religion is very simple. My religion is kindness.

Fortune favors the prepared mind.

The true method of knowledge is experiment.

Surprise is the greatest gift which life can grant us.

A good laugh is sunshine in the house.

Prosperity tries the fortunate, adversity the great.

No one can figure out your worth but you.

It is easier to prevent bad habits than to break them.

Don't grieve. Anything you lose comes round in another form.

The richest love is that which submits to the arbitration of time.

Let there be work, bread, water, and salt for all.

Perfection is attained by slow degrees; it requires the hand of time.

I believe that every human mind feels pleasure in doing good to another.

They can conquer who believe they can.

To know is to know that you know nothing. That is the meaning of true knowledge.

If you can't describe what you are doing as a process, you don't know what you're doing.

To the mind that is still, the whole universe surrenders.

A man of knowledge chooses a path with a heart and follows it and then he looks and rejoices and laughs and then he sees and knows

Do exactly what you would do if you felt most secure.

A good decision is based on knowledge and not on numbers.

The aim of education is the knowledge, not of facts, but of values.

It's always too early to quit.

Risk comes from not knowing what you're doing.

Knowledge has to be improved, challenged, and increased constantly, or it vanishes.

Consider your origins: you were not made to live as brutes, but to follow virtue and knowledge

The knowledge of yourself will preserve you from vanity.

Life lived for tomorrow will always be just a day away from being realized.

Everything that irritates us about others can lead us to an understanding of ourselves.

Expect problems and eat them for breakfast.

There are years that ask questions and years that answer.

What we really are matters more than what other people think of us.

Never bend your head. Always hold it high. Look the world straight in the eye.

If you aren't fired with enthusiasm, you will be fired with enthusiasm.

Either you run the day or the day runs you.

It takes courage to grow up and become who you really are.

It is possible to fly without motors, but not without knowledge and skill.

Thought is the wind and knowledge the sail.

Knowledge comes, but wisdom lingers.

I can't change the direction of the wind, but I can adjust my sails to always reach my destination.

If you fell down yesterday, stand up today.

Our work is the presentation of our capabilities.

We are not permitted to choose the frame of our destiny. But what we put into it is ours.

The world breaks everyone, and afterward, some are strong at the broken places.

Knowledge is an unending adventure at the edge of uncertainty.

Living well is the best revenge.

Know thyself, know thy enemy. A thousand battles, a thousand victories.

All knowledge is precious, whether or not it serves the slightest human use.