Science is a wonderful thing if one does not have to earn one's living at it.
科学是个美妙的东西——如果无须靠它维生的话。
自由不是礼物，而是每日的征服。
The best experiments often come from simple ideas and careful observation.
我不相信过度分散投资。我更喜欢集中在几个好主意上。
The only learning which significantly influences behavior is self-discovered, self-appropriated learning.