“Being happy, a state of mind of inner well-being that terribly disturbs those who are not.”

Quoted from: Maharishi Mahesh Yogi - Lake Louise, Canada (1968) - MaharishiUniversity http://www.bienfaits-meditation.com/en/maharishi/videos/mechanics-of-the-technique

Source: Bruiser

Bliss and happiness
Source: "I am That." P.96.

"Man alone, of all creatures of earth, can change his thought pattern and become the architect of his destiny." Actually said by Spencer W. Kimball, twelfth president of The Church of Jesus Christ of Latter-day Saints, in his Miracle of Forgiveness (1969), p. 114. This predates any of the misquotations.
Other forms: "The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind." This is also misattributed to Albert Schweitzer.
James did say: "As life goes on, there is a constant change of our interests, and a consequent change of place in our systems of ideas, from more central to more peripheral, and from more peripheral to more central parts of consciousness."
Misattributed
Context: Man alone, of all the creatures on earth, can change his own patterns. Man alone is the architect of his destiny. The greatest revolution in our generation is the discovery that human beings, by changing the inner attitudes of their minds, can change the outer aspects of their lives … It is too bad that most people will not accept this tremendous discovery and begin living it.

Variant: Sometimes our light goes out but is blown again into flame by an encounter with another human being. Each of us owes the deepest thanks to those who have rekindled this inner light.

[I] Signs, 1.2.2
Semiotics and the Philosophy of Language (1984)
Context: The sign is a gesture produced with the intention of communicating, that is, in order to transmit one's representation or inner state to another being. The existence of a certain rule (a code) enabling both the sender and the addressee to understand the manifestation in the same way must, of course, be presupposed if the transmission is to be successful; in this sense, navy flags, street signs, signboards, trademarks, labels, emblems, coats of arms, and letters are taken to be signs.<!-- Dictionaries and cultivated language must at this point agree and take as signs also words, that is, the elements of verbal language. In all the cases examined here, the relationship between the and that for which it stands seems to be less adventurous than for the first category.

The War for America's Soul, ISBN 978-1-62157-940-3

[Our treatment of animals is stalling human progress, February 19, 2018, Quartz, https://qz.com/1209936/our-treatment-of-animals-is-stalling-human-progress/]