A powerful agent is the right word: it lights the reader's way and makes it plain.
The exquisitely bad is as satisfying to the soul as the exquisitely good. Only the mediocre is unendurable.
It is a good idea to obey all the rules when you're young just so you'll have the strength to break them when you're old.
Modesty died when clothes were born.
Make your vocation your vacation. That is the secret to success.
We must look for our own blame to find our own personality.