“Iron rusts from disuse, stagnant water loses its purity, and in cold weather becomes frozen; even so does inaction sap the vigors of the mind.”

“Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind. So we must stretch ourselves to the very limits of human possibility. Anything less is a sin against both God and man.”

“One has no right to love or hate anything if one has not acquired a thorough knowledge of its nature. Great love springs from great knowledge of the beloved object, and if you know it but little you will be able to love it only a little or not at all.”

“Intellectual passion drives out sensuality. ”

“once you have tasted the taste of sky, you will forever look up”

“Many have made a trade of delusions and false miracles, deceiving the stupid multitudes.”

“As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.”