Hesiod

"We know how to speak many false things as though they were true; but we know, when we will, to utter true things." So said the ready-voiced daughters of great Zeus, and they breathed into me a divine voice to celebrate things that shall be and things there were aforetime.

But between us and Goodness the gods have placed the sweat of our brows: long and steep is the path that leads to her, and it is rough at the first; but when a man has reached the top, then is she easy to reach, though before that she was hard.

Work is no disgrace; it is idleness which is a disgrace.