“Actually, I think it's more immoral to use less force than necessary, than it is to use more. if you use less force, you kill off more of humanity in the long run, because you are merely protracting the struggle.”

Source: Tao Te Ching, Ch. 5, as interpreted by Stephen Mitchell (1992)
Context: The Tao is like a bellows:
it is empty yet infinitely capable.
The more you use it, the more it produces;
the more you talk of it, the less you understand.

Source: This Is How: Proven Aid in Overcoming Shyness, Molestation, Fatness, Spinsterhood, Grief, Disease, Lushery, Decrepitude & More. For Young and Old Alike.

Source: As You Like It

Variant: You are a wonderful creation. You know more than you think you know, just as you know less than you want to know.
Source: The Picture of Dorian Gray

Nahj al-Balagha
Context: A man sarcastically started praising Imam Ali, though he had no faith in him and Imam Ali hearing these praises from him said "I am less than what you tell about me but more than what you think about me."

The Trouble With Being Born (1973)

Jane to Mr. Rochester (Ch. 14)
Jane Eyre (1847)

Source: Three Lives & Tender Buttons

Address to United Nations General Assembly http://www.reagan.utexas.edu/archives/speeches/1987/092187b.htm (21 September 1987)
1980s, Second term of office (1985–1989)
Context: Cannot swords be turned to plowshares? Can we and all nations not live in peace? In our obsession with antagonisms of the moment, we often forget how much unites all the members of humanity. Perhaps we need some outside, universal threat to make us recognize this common bond. I occasionally think how quickly our differences worldwide would vanish if we were facing an alien threat from outside this world. And yet, I ask you, is not an alien force already among us? What could be more alien to the universal aspirations of our peoples than war and the threat of war?