To know one's ignorance is the best part of knowledge.
What is firmly rooted cannot be pulled out
Nothing is softer or more flexible than water, yet nothing can resist it.
Filling life exceedingly is called ominous.
Keep your mouth shut, and close up the doors of sight and sound, and as long as you live you will have no vexation. But open your mouth, or become inquisitive, and you will be in trouble all your life long.
What has not yet emerged is easy to prevent.