The optimist proclaims that we live in the best of all possible worlds — Possibility

"Possibility is not a luxury; it is as crucial as bread."

"A beautiful world we live in, when it IS possible, and when many other such things are possible, and not only possible, but done—done, see you!—under that sky there, every day. Long live the Devil. Let us go on."

"Possibility is neither forever nor instant. It is not easy to sustain belief in its efficacy. We can sometimes work long and hard to establish one beachhead of real resistance to the deaths we are expected to live, only to have that beachhead assaulted or threatened by those canards we have been socialized to fear, or by the withdrawal of those approvals that we have been warned to seek for safety."

"In order to realise his possibilities, man must believe in an open future; he must have a vision of something worth doing."

"A difference of opinion exists only as to the question to which of the two classes anything belongs; whether to the class of the impossible, or to that of the possible. Note it."

"Anxiety arises where possibility and actuality come into contact and the present touches the future."