We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
I did then what I knew how to do. Now that I know better, I do better.
During your life, never stop dreaming. No one can take away your dreams
All of us are products of our childhood.
Early in life I had to choose between honest arrogance and hypocritical humility. I chose the former and have seen no reason to change.
Certain signs precede certain events.
Live as if you were living a second time, and as though you had acted wrongly the first time.
You only live once, but if you do it right, once is enough.
In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.
Time ripens all things; no one is born wise.
Love is like an hourglass, with the heart filling up as the brain empties
History is the devil's scripture.
Almost all our desires, when examined, contain something too shameful to reveal.
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.
Nothing exists except atoms and empty space; everything else is opinion.
Imagination does not become great until human beings, given the courage and the strength, use it to create.
Imagination and fiction make up more than three quarters of our real life.
Between two evils, I always pick the one I never tried before.
In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed
All my life I have tried to pluck a thistle and plant a flower wherever the flower would grow in thought and mind.