Why does this magnificent applied science which saves work and makes life easier bring us so little happiness? ... The simple answer runs: 'Because we have not yet learned to make sensible use of it.'

Academic chairs are many, but wise and noble teachers are few; lecture-rooms are numerous and large, but the number of young people who genuinely thirst after truth and justice is small

It's not that life has been easy, perfect or exactly as expected. I just choose to be happy and grateful no matter how it all turns out. If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.

It is easy to say something new, if all senses one will eschew. But hardly ever is found, that the new is also sound.

If I had 20 days to solve a problem, I would take 19 days to define it

Logic will get you from A to B. Imagination will take you everywhere.

Politics is for the present, but an equation is for eternity.