Don’t be afraid in nature: one must be bold, at the risk of having been deceived and making mistakes.
Happiness is dependent on self-discipline. We are the biggest obstacles to our own happiness. It is much easier to do battle with society and with others than to fight our own nature.
The art of healing comes from nature, not from the physician. Therefore the physician must start from nature, with an open mind.
By its very nature the beautiful is isolated from everything else. From beauty no road leads to reality.