Never undertake anything unless you have the heart to ask Heaven's blessing on your undertaking.
Nowadays beautiful women are counted among the talents of their husbands.
A vacuum of ideas affects people differently than a vacuum of air, otherwise readers of books would be constantly collapsing.
With a pen in my hand I have successfully stormed bulwarks from which others armed with sword and excommunication have been repulsed.
A good means to discovery is to take away certain parts of a system to find out how the rest behaves.
When an acquaintance goes by I often step back from my window, not so much to spare him the effort of acknowledging me as to spare myself the embarrassment of seeing that he has not done so.
A book which, above all others in the world, should be forbidden, is a catalogue of forbidden books.
We have to believe that everything has a cause, as the spider spins its web in order to catch flies. But it does this before it knows there are such things as flies.
It is almost everywhere the case that soon after it is begotten the greater part of human wisdom is laid to rest in repositories.
There are people who possess not so much genius as a certain talent for perceiving the desires of the century, or even of the decade, before it has done so itself.
If it is permissible to write plays that are not intended to be seen, I should like to see who can prevent me from writing a book no one can read.
To do the opposite of something is also a form of imitation, namely an imitation of its opposite.
Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.
If there were only turnips and potatoes in the world, someone would complain that plants grow the wrong way.
To make astute people believe one is what one is not is, in most cases, harder than actually to become what one wishes to appear.
Here take back the stuff that I am, nature, knead it back into the dough of being, make of me a bush, a cloud, whatever you will, even a man, only no longer make me.
Good taste is either that which agrees with my taste or that which subjects itself to the rule of reason. From this we can see how useful it is to employ reason in seeking out the laws of taste.
We can see nothing whatever of the soul unless it is visible in the expression of the countenance; one might call the faces at a large assembly of people a history of the human soul written in a kind of Chinese ideograms.
If an angel were to tell us about his philosophy, I believe many of his statements might well sound like '2 x 2= 13'.
The construction of the universe is certainly very much easier to explain than is that of the plant.
What is the good of drawing conclusions from experience? I don't deny we sometimes draw the right conclusions, but don't we just as often draw the wrong ones?
Some theories are good for nothing except to be argued about.
The most successful tempters and thus the most dangerous are the deluded deluders.
The most heated defenders of a science, who cannot endure the slightest sneer at it, are commonly those who have not made very much progress in it and are secretly aware of this defect.
To see every day how people get the name 'genius' just as the wood-lice in the cellar the name 'millipede'-not because they have that many feet, but because most people don't want to count to 14-this has had the result that I don't believe anyone any more without checking.
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