Health is not a privilege of the rich, but a vulnerability of the poor.
The best way to predict the future is to create it.
一切都是学习的过程:每次跌倒,你都会站起来并从中学习。
人类智力的发展都应该主要归功于欲望,而欲望能否被普遍满足要依靠智力的发展。