True friendship can afford true knowledge. It does not depend on darkness and ignorance.
Henry David ThoreauIt takes a lot of things to prove you are smart, but only one thing to prove you are ignorant.
Don HeroldBut what sin is to the moralist and crime to the jurist so to the scientific man is ignorance.
Frederick SoddySo I think it's better to say something than not to say anything at all, even to an ignorant person.
Chad HugoIgnorance and superstition ever bear a close and mathematical relation to each other.
James F. CooperAmong many events in life, failure is a small event, so ignore it and prepare for another one.
Debasish Mridha