Life must be lived as play.

The knowledge of oneself will preserve that person from vanity.

Life is not measured by the number of breaths we take, but by the moments that take our breath away.

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.

In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed

Our life always expresses the result of our dominant thoughts.

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

Life is a disease, brother, and death begins already at birth. Every breath, every heartbeat, is a moment of dying - a little shove toward the end.

Landlords, like all other men, love to reap where they never sowed.

The future is the shape of things to come.

All my life I used to wonder what I would become when I grew up. Then, about seven years ago, I realized that I was never going to grow up - that growing is an ever ongoing process.

The young people think the old people are fools - but the old people know the young people are fools.

How wonderful it is that nobody need wait a single moment before starting to improve the world.

A man's true character comes out when he's drunk.

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

Old age is by nature rather talkative.

One day, in retrospect, the years of struggle will strike you as the most beautiful.

Science is the outcome of being prepared to live without certainty and therefore a mark of maturity. It embraces doubt and loose ends.

Don't be too timid and squeamish about your actions. All life is an experiment. The more experiments you make the better.

Humility is really important because it keeps you fresh and new.

And the day came when the risk to remain tight in a bud was more painful than the risk it took to blossom.