you never know
Used to speculate about a slight possibility.
You never know what is enough unless you know more than enough. William Blake
Doing nothing is very hard to do... you never know when you're finished. Leslie Nielsen
You can never do a kindness too soon, for you never know how soon it will be too late. Ralph Waldo Emerson
You never know what you can do until you try. English Proverb
Don't throw away your nets if you catch nothing, you never know what the gods are planning next. African Proverb
You never know what you can do till you try. Dutch Proverb