I don't know how to make songs like that, I don't know what words to use. Let me know when it occurs to you.
The future of democracy depends on the ability of democratic societies to reform themselves and adapt to new challenges.
The essence of mathematics lies in its freedom.
教育的开端是最重要的部分,因为在幼年时期,性格正在形成,我们所接受的影响会留下不可磨灭的印记。