Those who cannot remember the past are condemned to repeat it.
A country without a memory is a country of madmen.
To know what people really think, pay regard to what they do, rather than what they say.
Eternal vigilance is the price of knowledge.
History is a pack of lies about events that never happened told by people who weren't there.
The one who does not remember history is bound to live through it again
A child educated only at school is an uneducated child.
There is wisdom in turning as often as possible from the familiar to the unfamiliar: it keeps the mind nimble, it kills prejudice, and it fosters humor.
The Difficult is that which can be done immediately; the Impossible that which takes a little longer.
Whoever it was who searched the heavens with a telescope and found no God would not have found the human mind if he had searched the brain with a microscope.
There is no greater stupidity or meanness than to take uniformity for an ideal.
Habit is stronger than reason.
My atheism, like that of Spinoza, is true piety towards the universe and denies only gods fashioned by men in their own image, to be servants of their human interests.
We must welcome the future, remembering that soon it will be the past; and we must respect the past, remembering that it was once all that was humanly possible.
The wisest mind has something yet to learn.
Chaos is a name for any order that produces confusion in our minds.
Intelligence is quickness in seeing things as they are.
Fanaticism consists of redoubling your effort when you have forgotten your aim.
Wisdom lies in taking everything with good humor and a grain of salt.
Progress, far from consisting in change, depends on retentiveness. When change is absolute there remains no being to improve and no direction is set for possible improvement: and when experience is not retained, as among savages, infancy is perpetual. Those who cannot remember the past are condemned to repeat it. In the first stage of life the mind is frivolous and easily distracted; it misses progress by failing in consecutiveness and persistence. This is the condition of children and barbarians, in which instinct has learned nothing from experience.
Only the dead have seen the end of the war.
Advertising is the modern substitute for argument, its function is to make the worse appear the better article. A confused competition of all propagandas -- those insults to human nature -- is carried on by the most expert psychological methods -- for instance, by always repeating a lie.
Never have I enjoyed youth so thoroughly as I have in my old age
For a man who has done his natural duty, death is as natural as sleep.
Skepticism is the chastity of the intellect...
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