Enemies are often former or potential friends who have been denied - or think that they have been denied - something.
The learned person who only talks will never Penetrate to the inner heart of humans.
You must empty out the dirty water before you fill the pitcher with clean.
When tomorrow comes, think tomorrow's thoughts.
The laziness of adolescence is a rehearsal for the incapacity of old age.
People used to play with toys. Now the toys play with them.