If I had an hour to solve a problem I'd spend 55 minutes thinking about the problem and 5 minutes thinking about solutions.

My scientific work is motivated by an irresistible longing to understand the secrets of nature and by no other feeling. My love for justice and striving to contribute towards the improvement of human conditions are quite independent from my scientific interests.

But if the longing for the achievement of the goal is powerfully alive within us, then shall we not lack the strength to find the means for reaching the goal and for translating it into deeds.

Do not grow old, no matter how long you live.

I like the Swiss because by and large they are more humane than the other people aming whom I have lived.

All means prove but blunt instruments, if they have not behind them a living spirit.

To invent something, all you need is imagination and a big pile of junk.