The greatest threat to our forests is not the axe, but indifference.

科学是无穷尽的。

"The key to success is to focus our conscious mind on things we desire, not things we fear."

要保持领先，你必须不断适应和发展。

In every problem, there is a hidden pattern waiting to be discovered, and it is our duty as mathematicians to uncover it.

对于任何国家来说，最大的幸福是将最高权力从少数统治者手中收回，交到众多被统治者手中。