Setting out well is a quarter of the journey.
More French Proverbs:
The threatener sometimes gets a beating.French
From short pleasure long repentance.
French
Saying well causes a laugh; doing well produces silence.
French
Two sparrows upon one ear of corn make ill agreement.
French
No man is a prophet in his own country.
French
To wash an ass's head is but loss of time and soap. (To reprove a fool is but lost labour.)
French