“Understanding requires insight. Insight must be anchored.”

Source: Manual of Insight (1945), p. 70

Essays on the Art of Theater (1954).
Context: It is not enough to demand insight and informative images of reality from the theater. Our theater must stimulate a desire for understanding, a delight in changing reality. Our audience must experience not only the ways to free Prometheus, but be schooled in the very desire to free him. Theater must teach all the pleasures and joys of discovery, all the feelings of triumph associated with liberation.

Source: The Gutenberg Galaxy: The Making of Typographic Man

Source: Manual of Insight (1945), p. 60

Source: Who Is Man? (1965), Ch. 5<!-- The sense of the ineffable, p. 88 - 89 -->
Context: Awe is more than an emotion; it is a way of understanding, insight into a meaning greater than ourselves. The beginning of awe is wonder, and the beginning of wisdom is awe.
Awe is an intuition for the dignity of all things, a realization that things not only are what they are but also stand, however remotely, for something supreme. Awe is a sense for transcendence, for the reference everywhere to mystery beyond all things. It enables us to perceive in the world intimations of the divine, to sense in small things the beginning of infinite significance, to sense the ultimate in the common and the simple: to feel in the rush of the passing the stillness of the eternal. What we cannot comprehend by analysis, we become aware of in awe.

And the Weak Suffer What They Must? : Europe's Crisis and America's Economic Future (2016), Ch. 4, Trojan Horse

Introduction
The Prophets (1962)

Source: The Unabridged Journals of Sylvia Plath

Source: The Bed of Procrustes: Philosophical and Practical Aphorisms (2010), p. 84