The greatest resource we have is human ingenuity.
Democracy is not just voting, it's a way of life based on the respect of diversity and tolerance.
【译文】兔子死尽猎犬被烹,敌国灭亡谋臣遭殃。
The best way to learn mathematics is to do mathematics.
Make it simple. Make it memorable. Make it inviting to look at. Make it fun to read.