探索计算复杂性是一段进入未知的旅程，每一次发现都会打开新的门。
The exploration of computational complexity is a journey into the unknown, where each discovery opens new doors.
——《在沪举办茶话会上的演说》（1916年7月17日）
It is perfectly certain that the soul is immortal and imperishable, and our souls will actually exist in another world.
If you want to go fast, go alone. If you want to go far, go together.
每一颗播种的种子都是对未来的押注——明智选择。