“Authority without wisdom is like a heavy axe without an edge, fitter to bruise than polish”

“Knowledge is like a baobab tree - one person's arms are not enough to encompass it”

“Do you think yourself wise? Then there's a donkey inside your waistcoat”

“Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.”

“A wise man seeks wisdom; a madman thinks that he has found it.”

“You never fail until you stop trying”