经验只是我们给错误起的名字。

即使在艰难时刻，我也总是努力保持积极。

I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.

科学的本质在于通过观察、实验和推理不懈追求真理。