“All our knowledge has its origins in our perceptions.”
“Although nature commences with reason and ends in experience, it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.”
“Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.”
“Art is never finished, only abandoned.”
“As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.”
“Beyond a doubt truth bears the same relation to falsehood as light to darkness.”
“Details make perfection, and perfection is not a detail.”
“Every action needs to be prompted by a motive. “
“Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments.”
“He who can copy can do.”
“He who does not oppose evil, commands it to be done.”
“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.”
“He who thinks little errs much…”
“He who truly knows has no occasion to shout.”
“I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.”
“I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection.”
“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.”
“It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.”
“It is easier to contend with evil at the first than at the last. “
“It is easier to resist at the beginning than at the end.”
“Just as food eaten without appetite is a tedious nourishment, so does study without zeal damage the memory by not assimilating what it absorbs.”
“Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.”
“Learn how to see. Realize that everything connects to everything else.”
“Learning is the only thing the mind never exhausts, never fears, and never regrets.”
“Learning never exhausts the mind.”
“Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works. If it works big, others quickly copy it. Then you do something else. The trick is the doing something else. “
“Make your work to be in keeping with your purpose.”
“Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.”
“Nothing can be loved or hated unless it is first understood.”
“Nothing strengthens authority so much as silence. “
“One can have no smaller or greater mastery than mastery of oneself.”
“People react to fear, not love – they don’t teach that in Sunday School, but it’s true. “
“Poor is the pupil who does not surpass his master.”
“Realize that everything connects to everything else.”
“Simplicity is the ultimate sophistication.”
“Study without desire spoils the memory, and it retains nothing that it takes in.”
“Tears come from the heart and not from the brain.”
“The deeper the feeling, the greater the pain.”
“The greatest deception men suffer is from their own opinions.”
“The knowledge of all things is possible”
“The noblest pleasure is the joy of understanding.”
“The truth of things is the chief nutriment of superior intellects. “
“There are three classes of people: those who see, those who see when they are shown, those who do not see.”
“Time stays long enough for anyone who will use it.”
“To develop a complete mind: Study the science of art; Study the art of science. Learn how to see. Realize that everything connects to everything else.”
“Truth at last cannot be hidden. Dissimulation is of no avail. Dissimulation is to no purpose before so great a judge. Falsehood puts on a mask. Nothing is hidden under the sun.”
“Truth was the only daughter of Time.”
“Why does the eye see a thing more clearly in dreams than with the imagination being awake?”
“Wisdom is the daughter of experience.”