The first forty years of life give us the text; the next thirty supply the commentary on it.

Man is born free and everywhere he is in chains.

Life is a journey, not a destination.

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

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

Do not erase the designs the child makes in the soft wax of his inner life.

My art and profession is to live.

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.

Let silence take you to the core of life.

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

Living is Easy with Eyes Closed.

Behind every beautiful thing, there's some kind of pain.

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

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

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

The difficulty we have in accepting responsibility for our behaviour lies in the desire to avoid the pain of the consequences of that behaviour

If a man neglects education, he walks lame to the end of his life

Consistency is contrary to nature, contrary to life. The only completely consistent people are the dead.

Your purpose in life is to find your purpose and give your whole heart and soul to it.

Speed and efficiency do not always increase the quality of life.

Nature is not human-hearted.