Here’s a quote by the famous poet Goethe that I find particularly impactful:
Until one is committed
there is hesitancy, the chance to draw back,
always ineffectiveness.
Concerning all acts of initiative (and creation)
there is one elementary truth
the ignorance of which kills countless ideas
and splendid plans:
that the moment one definitely commits oneself
then Providence moves too.
All sorts of things occur to help one
that would never otherwise have occurred.
A whole stream of events issues from the decision
raising in one’s favour all manner
of unforeseen incidents and meetings
and material assistance
which no man could have dreamt
would have come his way.
Whatever you can do or dream you can, begin it.
Boldness has genius, power and magic in it.
Begin it now.
-Goethe