Lente, lente currite, noctis equi. Translation: Run slowly, slowly, horses of the night.
The end doesn't justify the means.
You will go most safely in the middle.
Let love give way to business; give attention to business and you will be safe.
Rest strengthens the body, the mind too is thus supported; but unremitting toil destroys both.
Twice does he live who can enjoy the remembrance of the past.