Our highest endeavor must be to develop free human beings who are able of themselves to impart purpose and direction to their lives.
我们最高的努力必须是培养自由的人类，他们能够自己赋予生活目的和方向。
The brain is the most complex thing we have yet discovered in our universe.
The biggest challenge isn't the science - it's changing people's perceptions.
即使在艰难时刻，我也努力保持积极。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
最好的想法往往来自倾听——倾听农民、科学家和家庭的声音。
We must not always talk in the market-place of what happens to us in the forest.