Who said "This above all: to thine own self be true."?

This quote is attributed to Fine, Arthur.

This above all: to thine own self be true. - Fine, Arthur

"This above all: to thine own self be true."

Fine, Arthur

Philosopher American 1937–2014

"The world breaks everyone, and afterward, some are strong at the broken places."

"Life is what happens when you're busy making other plans."

"The only way to do great work is to love what you do."

"In the middle of difficulty lies opportunity."