Es sei denn / Unless Ganze / Whole Genug / Enough Menge / Lot Mutig / Brave Noch nie / Never Sie / You Versuchen / Try
Never look back unless you are planning to go that way.
You never know what is enough unless you know what is more than enough.
The trouble with words is that you never know whose mouths they have been in.
Never give a golfer an ultimatum unless you're prepared to lose.
Unless you try to do something beyond what you have already mastered, you will never grow.
You just can't beat the person who never gives up.
As you get older, there's a loosening of the ties to the ego and the posturing of who you are and how you behave.
Tell me what you read and I'll tell you who you are is true enough, but I'd know you better if you told me what you reread.
You never achieve success unless you like what you are doing.