“Human migration beyond Earth is our destiny, not as in something preordained, but in the sense of it being inevitable and necessary. The lot of humanity seems to be that of expanding consciousness into new territory.”

1963, American University speech
Context: Let us examine our attitude toward peace itself. Too many of us think it is impossible. Too many think it unreal. But that is a dangerous, defeatist belief. It leads to the conclusion that war is inevitable — that mankind is doomed — that we are gripped by forces we cannot control. We need not accept that view. Our problems are manmade — therefore, they can be solved by man. And man can be as big as he wants. No problem of human destiny is beyond human beings. Man's reason and spirit have often solved the seemingly unsolvable — and we believe they can do it again.

Source: The Politics of Experience (1967), p. 3 of Introduction

De Abaitua interview (1998)
Context: All of us collectively are fumbling towards an apprehension of something that feels like a kind of group awareness – we are trying to feel the shape of it, it’s not here yet, and a lot of us are probably saying a lot of silly things. That’s understandable. There is something strange looming on the human horizon. If you draw a graph of all our consciousness, there is a point we seem to be heading towards. Our physics, our philosophy, our art, our literature – there is a kind of coherence there, it may look disorganised at first glance, but there is a fumbling towards a new way of apprehending of certain basic fundamentals.

Introduction
Problems Of Humanity (1944)

Interview by Iara Lee for the film Modulations http://www.furious.com/perfect/stockhauseninterview.html (August 1997)
Attributed

Source: Death: The Final Stage of Growth (1975), Ch. 6

The Basic Teachings - Part 1: Principles of the Teaching (2009)

Chap. 2 : The Sense of the Past
On History (1997)