The world is independent of my will.
心理学必须是一门功能的科学，而不仅仅是事实的科学。
The Tour is won in the mind.
Courage consists not in hazarding without fear； but being resolutely minded in a just cause.
解读：知晓道理容易，付诸实践却困难重重，很多人困于理论，缺乏行动力，知行脱节带来巨大的挫败感与自我怀疑，督促人行动起来。