Our perfect companions never have fewer than four feet. Colette
Don't cross a river if it is four feet deep on average. Nassim Nicholas Taleb
She was Lo, plain Lo, in the morning, standing four feet ten in one sock. She was Lola in slacks. She was Dolly at school. She was Dolores on the dotted line. But in my arms, she was always Lolita. Vladimir Nabokov
An Horse may snapper on four feet. Scottish Proverb
All asses do not go on four feet. American Proverb
A horse may stumble, though he has four feet. Dutch Proverb