死者从未真正离去，他们只是改变了形态。
The dead are never really gone, they just change form.
一个好老师必须能够设身处地为那些觉得学习困难的人着想。
我被告知进步的道路既不是快速的，也不是容易的。
I believe that man will not merely endure: he will prevail. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion and sacrifice and endurance.
"We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct."
我不是一个完美主义者，但我喜欢感觉事情做得很好。
The power of the Internet is in its universality.
Sustainability isn't an option anymore—it's a necessity for any responsible mining operation.