What is true by firelight is not always true by daylight.
More French Proverbs:
To wash an ass's head is but loss of time and soap.French
Almost and "about" prevent lying.
French
To a rogue a rogue and a half.
French
I never saw a silent rich man.
French
With the help of an 'if' you might put Paris into a bottle.
French
Pride can only lose.
French