To believe a thing impossible is to make it so.
More French Proverbs:
He who has nothing fears nothing.French
Gray and green make the worst medley.
French
He that corrects not youth, controls not age.
French
Ask my comrade, who is as great a liar as myself.
French
No man understands knavery better than the abbot who has been a monk.
French
The best wine has its lees.
French