He's waur to water than to corn.
Fonder of his meat than his drink.
He's weel boden there ben that will neither borrow nor lend.
Meaning that a person must be very well off indeed who can afford to dispense with all assistance.
He's weel eased that has o' his ain.
He's weel worthy o' sorrow that buys it wi' his ain siller.
He's wise that kens when he's weel enough.
"This is a pitch of wisdom to which few attain."—Kelly.
He's wise that's timely wary.