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.

释义：听得多了，看得多了，才能够体察出事物中的精要，才能够选择事物好的一面进行学习，选择正确的道理进行遵从。