To protect our freedoms, it seems we're going to have to relinquish some of our freedoms for a short period of time.

Time is the best killer.

Nature is not human-hearted.

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

To be interested in the changing seasons is . . . a happier state of mind than to be hopelessly in love with spring.

What goes up must come down.

The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane.

The 'good old times'-all times, when old, are good.

The gratification of wealth is not found in mere possession or in lavish expenditure, but in its wise application.

The more I see, the less I know for sure.

My life didn't please me, so I created my life.

Doubt must be no more than vigilance, otherwise it can become dangerous.

Imagination does not become great until human beings, given the courage and the strength, use it to create.

Don't let making a living prevent you from making a life.

The more you live in the present moment, the more the fear of death disappears.

The natural world is the greatest source of excitement. The greatest source of visual beauty. It is the greatest source of so much in life that makes life worth living.

My art and profession is to live.

For life in general, there is but one decree: youth is a blunder, manhood a struggle, old age a regret.

Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, and I'm going to be happy in it.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.

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