There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question.Carl Sagan
You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.Naguib Mahfouz
The questions which one asks oneself begin, at least, to illuminate the world, and become one's key to the experience of others.James Baldwin
If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions?Scott Adams