Fear is the main source of superstition， and one of the main sources of cruelty. To conquer fear is the beginning of wisdom， in the pursuit of truth as in the endeavour after a worthy manner of life.

Safety production is a red line that must never be relaxed at any time.

未来属于那些今天种树的人。

And those who were seen dancing were thought to be insane by those who could not hear the music.

In the search for truth, there are no final answers, only better questions.