"A novel is a mirror carried along a high road. Sometimes it reflects to your eyes the blue of the skies, at others the churned-up mud of the road."

The beauty of mathematics lies in its ability to simplify complex problems.

The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.

宇宙不仅比我们想象的更奇怪，它比我们能够想象的还要奇怪。