A person who say it cannot be done should not interrupt the man doing it

Similar sayings:

When you say one thing, the clever person understands three When you say one thing, the clever person understands three
A person with a bad name is already half-hanged A person with a bad name is already half-hanged
A person whose heart is not content is like a snake which tries to swallow an elephant A person whose heart is not content is like a snake which tries to swallow an elephant
If a thing’s worth doing, it’s worth doing well If a thing’s worth doing, it’s worth doing well
The best cure for drunkenness is whilst sober to observe a drunken person The best cure for drunkenness is whilst sober to observe a drunken person

Chinese sayings and proverbs