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The greatest deception men suffer is from their own opinions.
There are three classes of people: those who see. Those who see when they are shown. Those who do not see
Beyond a doubt truth bears the same relation to falsehood as light to darkness
Simplicity is the ultimate sophistication
The noblest pleasure is the joy of understanding
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.
Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.
Time stays long enough for anyone who will use it.
Nothing strengthens authority so much as silence.
Necessity is the mistress and guide of nature
Wisdom is the daughter of experience.
Truth was the only daughter of Time.
He who possesses most must be most afraid of loss.
I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.
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.
While I thought that I was learning how to live, I have been learning how to die.
Why does the eye see a thing more clearly in dreams than the imagination when awake?
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.
It’s easier to resist at the beginning than at the end.
Learning never exhausts the mind.
Nature never breaks her own laws
All our knowledge has its origins in our perceptions.
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.
Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous.
As a well spent day brings happy sleep, so a life well spent brings happy death.
Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.
Experience does not err. Only your judgments err by expecting from her what is not in her power.
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.