“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.”

Be Here Now (1971)
Context: I'd get to a point with my colleagues when I couldn't explain any further, because it came down to "To him who has had the experience no explanation is necessary, to him who has not, none is possible.".

Source: The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind

"The Holy Dimension", p. 338
Moral Grandeur and Spiritual Audacity: Essays (1997)
Context: There is neither advance nor service without faith. Nobody can rationally explain why he should sacrifice his life and his happiness for the sake of the good. The conviction that I must obey the ethical imperatives is not derived from logical argument but originates from an intuitive certitude, in a certitude of faith.
There is no conspiracy against reason, no random obstinacy, no sluggish inertia of mind or smug self-assurance entrenched behind the walls of believing. Faith does not detach a man from thinking, it does not suspend reason. It is opposed not to knowledge but to backwardness and dullness, to indifferent aloofness to the essence of living. … It is a distortion to regard reason and faith as alternatives. Reason is a necessary coefficient of faith. Faith without explication by reason is mute, reason without faith is deaf. There can be a true symbiosis of reason and faith.

Source: Everybody’s Autobiography (1937), Ch. 4
Context: Explanations are clear but since no one to whom a thing is explained can connect the explanations with what is really clear, therefore clear explanations are not clear. Now this is a simple thing that anybody who has ever argued or quarreled knows perfectly well is a simple thing, only when they read it they do not understand it because they do not see that understanding and believing are not the same thing.

Source: 1Q84

Love – That’s All Cary Grant Ever Thinks About (1964)
Context: I never dwell on past mistakes… There is too much to plan for the future to waste time complaining.  Elsie Mendl was a great friend of mine for many, many years. And I remember the creed by which she lived: Never complain, never explain. Just think of the people you know who are always explaining their mistakes. It merely rubs the whole thing in. You’re reminded again of the mistake. And no one believes the explanation anyway.

The Star Diaries (1976)

Source: The Gospel of Sri Ramakrishna (1942), p. 849

The Ecological Vision: Reflections on the American Condition (1993)
1990s and later