“Hesitation of any kind is a sign of mental decay in the young, of physical weakness in the old.”

“He considered old age and its mutilations and wondered what it would do for him: examples presented themselves to his mind, not only of mental decay, physical weakness, gout, stone and rheumatism, but of boastful mendacious garrulity, intense and peevish selfishness; timidity if not cowardice, dirt, concupiscence, avarice.”

“Clutter, either mental or physical, is the sign of a healthy curiosity.”

“Anything that brings spiritual, mental, or physical weakness, touch it not with the toes of your feet.”

“A majority of young people seem to develop mental arteriosclerosis forty years before they get the physical kind. Another question: why do some people remain open and elastic into extreme old age, whereas others become rigid and unproductive before they're fifty?”

“~Any feeling is both mental and physical~”