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.
我感到越不确定和不安，就越坚持绘画的念头。
I'm not going to change who I am or what I stand for.
农业的真正领导力意味着要超越下一次收获的思考。
The beauty of physics lies in its ability to explain the complex with simple principles.