Every artist dips his brush in his own soul, and paints his own nature into his pictures.
艺术不是你看到的,而是你让别人看到的。
对心灵的研究必须严格经验化。
在野外生存的最佳方法是保持冷静并清晰地思考。
唯一真正的进步在于学会独自犯错。