Those who cannot remember the past are condemned to repeat it.
Eternal vigilance is the price of knowledge.
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.
History is a pack of lies about events that never happened told by people who weren't there.
Those who speak most of progress measure it by quantity and not by quality.
A child educated only at school is an uneducated child.
The one who does not remember history is bound to live through it again
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.
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.
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.
Wisdom comes by disillusionment.
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.
There is no greater stupidity or meanness than to take uniformity for an ideal.
Only the dead have seen the end of the war.
It is wisdom to believe the heart.
The wisest mind has something yet to learn.
Perhaps the universe is nothing but an equilibrium of idiocies.
I like to walk about amidst the beautiful things that adorn the world.
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.
The mass of mankind is divided into two classes, the Sancho Panza's who have a sense for reality, but no ideals, and the Don Quixote's with a sense for ideals, but mad.
There is no cure for birth and death save to enjoy the interval.
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