The only sensible ends of literature are, first, the pleasurable toil of writing; second, the gratification of one's family and friends; and lastly, the solid cash.
学习在于改变介于刺激和反应之间的某些中介过程。
可持续性不仅仅是一个流行词；它是负责任的采矿的基础。
事实是顽固的东西；无论我们的愿望、倾向或激情的驱使如何，它们都无法改变事实和证据的状态。
成功不是幸福的关键。幸福才是成功的关键。如果你热爱你所做的事情，你就会成功。
"We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction."
写作是在一个世界中创造另一个世界。