数学不是一项观赏性运动；要理解它，必须积极参与其中。
Mathematics is not a spectator sport; to understand it, one must engage with it actively.
A writer is like a tuning fork: We respond when we're struck by something that resonates with us.
如果你想理解大脑，你不应该只看单个神经元。你应该关注大量神经元之间的相互作用。