人心如海：有风暴，有潮汐，有深渊；其中也有珍珠。
The human heart is like the sea: it has its storms, its tides, and its depths; in it, too, there are pearls.
You cannot make yourself feel something you do not feel, but you can make yourself do right in spite of your feelings.
Algorithms are the poetry of computer science, where logic meets creativity.
教育的根是苦的，但果实是甜的。