Life is the spirit incarnate in time.

In order to change an existing paradigm you do not struggle to try and change the problematic model. You create a new model and make the old one obsolete.

Parents are usually more careful to bestow knowledge on their children rather than virtue, the art of speaking well rather than doing well; but their manners should be of the greatest concern.

The future is a choice between Utopia and oblivion.

Ninety-nine per cent of who you are is invisible and untouchable.

There is enough for everyone. People think that there isn't enough, so they get as much as they can, so many people don't have enough.

When I'm working on a problem, I never think about beauty. I think only how to solve the problem.