"Every now and then a man's mind is stretched by a new idea or sensation, and never shrinks back to its former dimensions." (Oliver W Holmes Sr., "The Autocrat of the Breakfast Table", 1858)
"The more a man thinks the better adapted he becomes to thinking, and education is nothing if it is not the methodical creation of the habit of thinking. Precisely. Theoretically, education is a mental training aiming at greater intellectual elasticity, but the question is whether education does not often strain, instead of train, a mind." (Ernest Dimnet, "The Art of Thinking", 1928)
"Most mistakes in philosophy and logic occur because the human mind is apt to take the symbol for the reality." (Albert Einstein, "Cosmic Religion: With Other Opinions and Aphorisms" , 1931)
"Peace of mind is that mental condition in which you have accepted the worst." (Lin Yutang, "The Importance of Living", 1937)
"The limits of thought are not so much set from outside, by the fullness or poverty of experiences that meet the mind, as from within, by the power of conception, the wealth of formulative notions with which the mind meets experiences." (Susanne Langer, "Philosophy in a New Key: A Study in the Symbolism of Reason, Rite, and Art", 1942)
"Meditation is the direct means of eradicating the very cause of the majority of diseases, both mental and physical." (Maharishi Mahesh Yogi, "Meditation", 1962)
"The discipline of Zen consists in opening the mental eye in order to look into the very reason of existence." (D. T. Suzuki, "An Introduction to Zen Buddhism", 1964)
"The unknown, our own true nature, has the capacity to wake itself up when you start to fall in love with letting go of all the mental structures you hold onto. Contemplate this: there is no such thing as a true belief." (Steven Gray [Adyashanti], "Emptiness Dancing" , 2004)
"Integral wisdom involves a direct participation in every moment: the observer and the observed are dissolved in the light of pure awareness, and no mental concepts or attitudes are present to dim that light." (Lao Tzu)
"The changes in our life must come from the impossibility to live otherwise than according to the demands of our conscience not from our mental resolution to try a new form of life." (Leo Tolstoy, [letter])
