It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.

People can be divided into these types: strangers, acquaintances, familiar people, friends, and close friends. True friendship isn't about compliments to your face, but whether you're mentioned when they talk about friends behind your back.

专注做自己擅长的事。

The best solutions often come from listening—to nature, to science, and to the people on the ground.

奥林匹克旗帜以白色为底，中央有五个交织的环：蓝、黄、黑、绿和红色。这个设计是象征性的；它代表着世界五大洲，因奥林匹克精神而团结在一起。