Why is this thus? What is the reason for this thusness?
—Artemus Ward
The important thing is not to stop questioning.
—Albert Einstein
What we observe is not nature itself, but nature exposed to our method of questioning.
—Werner Heisenberg
The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day. Never lose a holy curiosity.
—Albert Einstein
Look at all the sentences which seem true and question them.
—David Reisman
A thinker sees his own actions as experiments and questions—as attempts to find out something. Success and failure are for him answers above all.
—Friedrich Nietzsche
A young man is embarrassed to question an older one.
—Homer
If you ask too many questions, you will find no answers, only more questions.
—Omaha Proverb
Ask questions from your heart and you will be answered from the heart.
—Protagoras
You can question somebody's views and their judgment without questioning their motives or patriotism.
—Publilius Syrus
There are two sides to every question.
—Solomon Ibn Gabirol
It is not every question that deserves an answer.
—Stephen Jay Gould
A wise man's question contains half the answer.
—Terence
So many men so many questions.
(Quot Homines Tot Sententiae)
—Voltaire
The outcome of any serious research can only be to make two questions grow where only one grew before.
—Unknown