“There are no physical problems—only mental ones.”
Byron Katie (1942) American spiritual writer
Loving What Is: Four Questions That Can Change Your Life (2002)
“The first requisite for success is the ability to apply your physical and mental energies to one problem incessantly without growing weary.”
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Thomas Edison57
American inventor and businessman 1847–1931Related quotes
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“It is only because of problems that we grow mentally and spiritually.”
M. Scott Peck (1936–2005) American psychiatrist
