To have a confident attitude, please learn to learn you do not have to learn the knowledge.
Every mathematical problem has a solution; you just need to find the right perspective.
嫉妒不是病态,而是一种进化出来的防御机制,用来对抗对繁殖成功的威胁。
如果你想要真正的和平,就必须从孩子开始。