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.
怀疑并不是令人愉快的状态,但确信是荒谬的。
The presence of those seeking the truth is infinitely to be preferred to the presence of those who think they've found it.
贫困陷阱的核心:今天的饥饿偷走了明天的生产力。
对心灵的研究就是对生活问题解决的研究。