The concept of topological protection in electronic systems is a profound insight that bridges abstract mathematics and practical physics.

Introspection is the only method by which the mind can be directly observed.

我不缺乏把一个想法彻底思考下去的勇气，到目前为止，我还没有遇到过我害怕的想法。

发怒如猛虎伤人，欲念似深渊难填。

对心灵的研究必须摆脱一切先入为主的观念。