Date: Date Unknown

"The command of one's self is the greatest empire a man can aspire unto, and consequently, to be subject to our own passions is the most grievous slavery."

— Milton, John (1608-1674)

Date: Date Unknown

To "be subject to our own passions is the most grievous slavery"

— Milton, John (1608-1674)

Date: 1908

"Ideas rose in crowds; I felt them collide until pairs interlocked, so to speak, making a stable combination."

— Poincaré, Henri (1854-1912)

Date: 1908

"So her mind is like a wonderful bird-cage, filled with nightingales, which, like all captive nightingales, feed upon hearts—upon her heart."

— Gregorio Martinez Sierra (1881-1947)

Date: 1908

"His mind is like a sunbeam which has fallen into a globe of crystal and clear water, and all the colors are there in it, except one, which is constancy."

— Gregorio Martinez Sierra (1881-1947)

Date: 1908, 1911

"The soul of a good man had become empty of all psychological content, of grounds and consequences; it has become a pure white slate, upon which fate writes its absurd command, and this command will be followed blindly, rashly, and fiercely to the end."

— Lukács, Georg [György] (1885-1971)

Date: 1909

"Thanks to his wonderful memory, everything he read was stored up for use or ornament, till his mind resembled a huge curiosity shop."

— Long, William Joseph (1867-1952)

Date: 1911

"The crystalloid minds are all that's clear, orderly, and beautiful."

— Lewis, Edwin Herbert (1866-1938)

Date: 1911

"The colloid minds are sticky, glutinous, and mussy."

— Lewis, Edwin Herbert (1866-1938)

Date: 1911

"Sleep scatters you; sensations come storming along into the dreamer's mind, and he is a prey to each in turn."

— Lewis, Edwin Herbert (1866-1938)