The only limits you have are the ones you set for yourself.
A man may die, nations may rise and fall, but an idea lives on. Ideas have endurance without death.
我不想成为环境的产物。我希望环境成为我的产物。
Mathematics is not just a human invention; it has a deep reality that exists independently of us.
外交不是零和游戏,而是寻找共同利益的艺术。