Without hard work, nothing grows but weeds.
It's always too early to quit.
Well done is better than well said.
Begin to be now what you will be hereafter.
Who seeks shall find.
Expect problems and eat them for breakfast.
Things do not happen. Things are made to happen.
What you do today can improve all your tomorrows.
You never know what motivates you.
Know or listen to those who know.
There is as much wisdom in listening as there is in speaking - and that goes for all relationships, not just romantic ones.