I'm not sure I'm adult yet.

Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.

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.

All my life I have tried to pluck a thistle and plant a flower wherever the flower would grow in thought and mind.

We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths.

The future is the shape of things to come.

Everyone seems to have a clear idea of how other people should lead their lives, but none about his or her own.

How can I go forward when I don't know which way I'm facing?

Between two evils, I always pick the one I never tried before.

It is easier to influence strong than weak characters in life.

Live simply so others may simply live.

Every person who ever thought he had a right to assert, and went boldly and asserted it, himself, or jointly with others that shared his convictions, was a direct actionist.

History has shown there are no invincible armies.

Imagination and fiction make up more than three quarters of our real life.

Never, ever underestimate the power of 'Id Like that.

Life shrinks or expands in proportion to one's courage.

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

You can find the entire cosmos lurking in its least remarkable objects.

If man limits himself to a satisfied animal existence, and asks from life only what such an existence can give, the higher values of life at once disappear.

Love is like an hourglass, with the heart filling up as the brain empties

He had the look of one who had drunk the cup of life and found a dead beetle at the bottom.