Adversity is the first path to truth.

Mathematics is the poetry of logical ideas.

心灵是构建生存策略的工坊。

The only real failure in life is not to be true to the best one knows.

The true value of a tree isn't in its board feet, but in its roots and reach.

如果我们从一开始就能预见，甚至证明，遵循某种方法我们将达到我们的目标，那么这种解决方法就是完美的。

我唔怕辛苦，最怕系冇机会。