The history of every country begins in the heart of a man or a woman.
The power of science lies in its universality and objectivity, it transcends culture and national boundaries.
Confidence is not 'they will like me'. Confidence is 'I'll be fine if they don't'.
如果人们不相信数学是简单的,那只是因为他们没有意识到生活有多么复杂。