科学思想不像被分成越来越小的蛋糕，而像一棵不断分枝的树。

That “democracy” is a somewhat vague term which I cannot define precisely. We ought to say, therefore: “I am fairly certain that it is a good thing if a government has something of the characteristics that are common to the British and American Constitutions,” or something of this sort.

我们必须平衡短期收益与长期愿景。

The measure of a man is what he does with power.