The ultimate test's always your own serenity. If you don't have this when you start and maintain it while you're working you're likely to build your personal problems right into the machine itself.

A culture that supports the dominance of social values over biological values is an absolutely superior culture to one that does not, and a culture that supports the dominance of intellectual values over social values is absolutely superior to one that does not.

The only Zen you can find on the tops of mountains is the Zen you bring up there.

The past exists only in our memories, the future only in our plans. The present is our only reality.

The Buddha takes no position on gods, he suggests they may exist or they may not, but either way you can live a moral life.

Sometimes it's a little better to travel than to arrive

... the laws of physics and of logic ... the number system ... the principle of algebraic substitution. These are ghosts. We just believe in them so thoroughly they seem real.