paradox
“It is rare that the feeling of absurdity is not followed by the feeling of necessity.”
“God is a witness that cannot be sworn.”
“The cistern contains: the fountain overflows.”
“The way up and the way down are one and the same.”
“Strange how paranoia can link up with reality now and then.”
“How wonderful that we have met with a paradox. Now we have some hope of making progress.”
“The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.”