Doing is a quantum leap from imagining.
— Barbara Sher

It is often stated that of all the theories proposed in this century, the silliest is quantum theory. In fact, some say that the only thing that quantum theory has going for it is that it is unquestionably correct.
Michio Kaku quantum quote

Quantum quotes
Picture quote about Quantum

If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.
— Neils Bohr

Doing is a quantum leap from imagining. Thinking about swimming isn't much like actually getting in the water. Actually getting in the water can take your breath away. The defense force inside of us wants us to be cautious, to stay away from anything as intense as a new kind of action. Its job is to protect us, and it categorically avoids anything resembling danger. But it's often wrong. Anything worth doing is worth doing too soon.
— Barbara Sher

Your notions of friendship are new to me; I believe every man is born with his quantum, and he cannot give to one without robbing another. I very well know to whom I would give the first place in my friendship, but they are not in the way, I am condemned to another scene, and therefore I distribute it in pennyworths to those about me, and who displease me least, and should do the same to my fellow prisoners if I were condemned to a jail.
— quantum quotation by Jonathan Swift