You never know what you can do until you try

Similar English and Irish sayings:

If at first you don’t succeed, try, try again If at first you don’t succeed, try, try again
Tell not all you know, all you have, or all you can do Tell not all you know, all you have, or all you can do
If you trust before you try, you may repent before you die If you trust before you try, you may repent before you die

Proverbs and English sayings