学习数学的最好方法就是做数学。
实际情况中，人民的意愿指的不过是人民中人数最多或发言最积极那部分人的意愿；多数人，或那些成功地控制主流发言权的人可以利用他们的“民主权利”去压迫他们以外的任何人。这种“多数人的暴政”和任何其他滥用权力的行为一样，都需要采取措施来防止这种情况发生。因此，即使在一个拥有政府时时刻刻能被民众审查的民主社会中，政府权力的限制依然未失去其重要性。
The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.
The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential.
医学的未来在于根据个人需求量身定制的个性化医疗。