"Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory."
"It is hard to have patience with people who say There is no death or Death doesn't matter. There is death. And whatever is matters. And whatever happens has consequences, and it and they are irrevocable and irreversible."
"Nature is full of infinite causes that have never occurred in experience."
"He turns not back who is bound to a star."
"As every divided kingdom falls, so every mind divided between many studies confounds and saps itself."
"Justs as iron rusts from disuse, even so does inaction spoil the intellect."
"Inequality is the cause of all local movements."
"Where the spirit does not work with the hand, there is no art."
"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."
"Iron rusts from disuse; water loses its purity from stagnation ... even so does inaction sap the vigor of the mind."
"You do ill if you praise, but worse if you censure, what you do not understand."
"All our knowledge has its origin in our perceptions"
"Just as iron rusts from disuse, even so does inaction spoil the intellect."
"The faculty of imagination is both the rudder and the bridle of the senses."
"The supreme misfortune is when theory outstrips performance."
"Whoever despises the high wisdom of mathematics nourishes himself on delusion and will never still the sophistic sciences whose only product is an eternal uproar."
"Experience does not err; only your judgments err by expecting from her what is not in her power."
"In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time."
"I have offended God and mankind because my work didn't reach the quality it should have."
"In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time."
"Simplicity is the ultimate sophistication."
"He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast."
"Art is never finished, only abandoned."
"A well-spent day brings happy sleep."
"You do ill if you praise, but worse if you censure, what you do not understand."