唯一存在的限制是你给自己设定的限制。
The only limits that exist are the ones you place on yourself.
科学的美丽在于它让我们惊讶的能力。
没有什么比独立和自由更宝贵的了。
Democracy is the worst form of government except all those other forms that have been tried from time to time.
情感所钟爱的人,正是我们这些人。
要养活世界,我们必须先学会倾听土地。
创造力需要放下确定性的勇气。