The first prerequisite of a sound foreign policy is a clear understanding of one's own values.
Success is not about how much money you make, it's about the difference you make in people's lives.
在化学中,就像在生活中一样,最具变革性的反应往往发生在学科之间的边界上。
每个数学问题都有一个解决方案;只是需要时间和努力去找到它。