5
" What is your substance, whereof are you made,
That millions of strange shadows on you tend?
Since everyone hath every one, one shade,
And you, but one, can every shadow lend.
Describe Adonis, and the counterfeit
Is poorly imitated after you.
On Helen’s cheek all art of beauty set,
And you in Grecian tires are painted new.
Speak of the spring and foison of the year;
The one doth shadow of your beauty show,
The other as your bounty doth appear,
And you in every blessèd shape we know.
In all external grace you have some part,
But you like none, none you, for constant heart. "
― William Shakespeare , Shakespeare's Sonnets
8
" The right method of philosophy would be this. To say nothing except what can be said, i.e. the propositions of natural science, i.e. something that has nothing to do with philosophy: and then always, when someone else wished to say something metaphysical, to demonstrate to him that he had given no meaning to certain signs in his propositions. This method would be unsatisfying to the other - he would not have the feeling that we were teaching him philosophy - but it would be the only strictly correct method. My propositions are elucidatory in this way: he who understands me finally recognizes them as senseless, when he has climbed out through them, on them, over them. (He must so to speak throw away the ladder, after he has climbed up on it.) He must surmount these propositions; then he sees the world rightly. Whereof one cannot speak, thereof one must be silent. "
― Ludwig Wittgenstein , Tractatus Logico-Philosophicus
12
" I neither oblige the belief of other person, nor overhastily subscribe mine own. Nor have I stood with others computing or collating years and chronologies, lest I should be vainly curious about the time and circumstance of things, whereof the substance is so much in doubt. By this time, like one who had set out on his way by night, and travelled through a region of smooth or idle dreams, our history now arrives on the confines, where daylight and truth meet us with a clear dawn, representing to our view, though at a far distance, true colours and shapes. "
― John Milton , History of Britain