意识的存在是为了行动。

原始人与文明人在心智能力上的差异并不像通常认为的那样大。

可持续性不是一种趋势，而是我们对后代的责任。

The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.

Hard work, under the old system, meant doing as little as possible.

正确的爱应该以仰慕为基础，我们应该去爱那些对我们有教育意义的先贤。我懂得这个道理且一辈子都在实践它。

最好的科学发现往往发生在不同学科的交叉点。

致力于你的业务。比任何人都更相信它。