All things good to know are difficult to learn.
More Greek Proverbs:
A word out of season may mar a whole lifetime.Greek
Where there is a sea there are pirates.
Greek
A priest blesses his own bread first.
Greek
The rest of the world does not know what newlyweds know.
Greek
Learn to walk before you run.
Greek
You learn to limp if you live with cripples.
Greek