The only way to learn mathematics is to do mathematics.
道德戒律是完美的戒律。
宇宙不仅仅是星星和星系的集合;它是一个复杂的互动和现象的网络,我们才刚刚开始理解。
You have to say, I am the person who is going to make the difference.
Diplomacy requires maintaining calmness and rationality, free from emotions and personal biases.