Let silence take you to the core of life.

I'd trade all my tomorrows for a single yesterday.

Someone's sitting in the shade today because someone planted a tree a long time ago.

Life is like a library owned by the author. In it are a few books which he wrote himself, but most of them were written for him.

It would please me best if, at the last, a marble stone shall record that this Queen having lived such and such a time, lived and died a virgin.

The privilege of a lifetime is to become who you truly are.

To do a great right do a little wrong.

In the end, it's not the years in your life that count. It's the life in your years.

There are two things a person should never be angry at, what they can help, and what they cannot.

Science is the most reliable guide for civilization, for life, for success in the world. Searching a guide other than the science is meaning carelessness, ignorance and heresy.

Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.

The time you enjoy wasting is not wasted time.

Being ignorant is not so much a shame, as being unwilling to learn.

Early in life I had to choose between honest arrogance and hypocritical humility. I chose the former and have seen no reason to change.

The historian looks backward. In the end he also believes backward.

We must be willing to fail and to appreciate the truth that often 'Life is not a problem to be solved, but a mystery to be lived.'

Work harder on yourself than you do on your job.

Time is really the only capital that any human being has and the thing that he can least afford to waste or lose

To forget is the secret of eternal youth. One grows old only through memory. There's much too little forgetting.

I restore myself when I'm alone.

When all life is seen as divine, everyone grows wings.