There is no sin except stupidity.
愚昧是最大的罪行，没有之一。
The splinter in your eye is the best magnifying-glass.
I believe that every challenge is an opportunity to grow.
自然并不比你想的更复杂，而是比你能想到的更复杂。
Mathematics is the key and door to the sciences.
In times of change, the learners will inherit the earth while the knowers will find themselves beautifully equipped to deal with a world that no longer exists.