The earth gives us coal; our duty is to give back stewardship.
当我们被爱时,我们都会变得更好。
教育的本质意味着:一棵树摇动另一棵树,一朵云推动另一朵云,一个灵魂唤醒另一个灵魂。
You can't have a better tomorrow if you're still thinking about yesterday.
计算的力量在于它能够将想法转化为现实。
We are the product of our evolutionary past.
The price of freedom is eternal vigilance.