Who seeks shall find.
Never complain and never explain.
Be gentle to all and stern with yourself.
If you're going through hell, keep going.
Be kind whenever possible. It is always possible.
Leap, and the net will appear.
The dog that trots about finds a bone.
Things do not happen. Things are made to happen.
After a storm comes a calm.
Know or listen to those who know.
I studied voice for about two years with an amazing coach, and I never rose above the level of mediocre.
I think there are a lot more writers who are actors than you know they just don't have roles on famous TV shows that you recognize.