“Happiness mainly comes from our own attitude, rather than from external factors.”
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Tenzin Gyatso 112
spiritual leader of Tibet 1935Related quotes

“[T]he laws of science are products of the human mind rather than factors of the external world.”
Introductory
The Grammar of Science (1900)

Source: "Statement of Prime Minister Bülent Ecevit in Helsinki on Turkey´s Candidacy to the EU" https://web.archive.org/web/20160716153818/https://www.mfa.gov.tr/statement-of-prime-minister-bulent-ecevit-in-helsinki-on-turkey_s-candidacy-to-the-eu_br_december-11_-1999-.en.mfa (11 December 1999)

Source: Adventures of a Mathematician - Third Edition (1991), Chapter 6, Transition And Crisis, p. 120

“Happiness is not something ready made. It comes from your own actions.”

Source: A Man of Law's Tale (1952), In London, p. 293

As quoted in "The Adventures of Col. Daniel Boon; containing a Narrative of the Wars of Kentucke" in The Discovery, Settlement And present State of Kentucke (1784) by John Filson
Context: Situated, many hundred miles from our families in the howling wilderness, I believe few would have equally enjoyed the happiness we experienced. I often observed to my brother, You see now how little nature requires to be satisfied. Felicity, the companion of content, is rather found in our own breasts than in the enjoyment of external things; And I firmly believe it requires but a little philosophy to make a man happy in whatsoever state he is. This consists in a full resignation to the will of Providence; and a resigned soul finds pleasure in a path strewed with briars and thorns.

“Happiness does not come from without, it comes from within”

Blue Labour, The Profundity of Defeat http://www.bluelabour.org/2013/10/30/285/