Every ton of low-carbon cement we produce is a step toward a healthier planet.

真正的领导力是为他人服务，而不是为自己。

如果不考虑演化, 生物学的一切都没有意义

我不是一个喜欢在中间的人。

随着复杂性的增加，精确的陈述会失去意义，而有意义的陈述会失去精确性。

在炮火下进入脑海的思想会牢固而永久地留在那里。

教育者必须是一位心理学家，以便理解儿童。

Success is not about how much money you make, it's about the difference you make in people's lives.

The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.