“If to know is to work, then knowledge is the fruit of our own unaided effort and activity; then knowledge includes nothing which is not due to the effort of man, and there is nothing gratuitous about it, nothing "inspired", nothing "given" about it.”

“He who knows nothing, loves nothing. He who can do nothing understands nothing. He who understands nothing is worthless. But he who understands alsoloves, notices, sees … The more knowledge is inherent in a thing, the greater the love.… Anyone who imagines that all fruits ripen at the same time as the strawberries knows nothing about grapes.”

“Nothing exists; even if something exists, nothing can be known about it; and even if something can be known about it, knowledge about it can't be communicated to others.”

“he had been making an unsuccessful effort to write something about nothing in particular”

“Knowledge is power? No. Knowledge on its own is nothing, but the application of useful knowledge, now that is powerful.”

“God is unknown; anything we said about God has no validity, because our knowledge about Him is zero, absolutely nothing!”