实现明天的唯一限制是我们今天的疑虑。
The only limit to our realization of tomorrow is our doubts of today.
趋势是你的朋友，直到它结束。
"The credibility of your results depends on the plausibility of your identifying assumptions."
Truth and clarity are complementary.
真相很少是纯粹的，也从来不简单。
Be realistic, demand the impossible!
The greatest threat to our forests is not logging, but indifference.