When you do not know the nature of the malady, leave it to nature; do not strive to hasten matters. For either nature will bring about the cure or it will itself reveal clearly what the malady really is.
An ignorant doctor is the aide-de-camp of death.
A horse is simply a horse.
The more brilliant the lightning, the quicker it disappears.
Width of life is more important than length of life.
That whose existence is necessary must necessarily be one essence.