When Bishop Berkeley said, "there was no matter,"
And proved it—'twas no matter what he said.
Mind Quotes
Shakespeare leads the mind page, with David Hume, Eckhart Tolle, Byron and Horace behind him. Russell’s The ABC of Relativity (1925) is the sourced standout, observing that we all tend to think the world must conform to our prejudices.
“What is mind? No matter. What is matter? Never mind” has a messy history, and the notes tell it. It is credited to Thomas Hewitt Key, who is said to have sent it to Punch in the 1860s, but it had apparently been printed earlier in a magazine called The Month, and it has been given to other people too. “Whatever the mind of man can conceive and believe, it can achieve” is credited to W. Clement Stone and flagged misattributed. So is a line about the human mind progressing in spirals, credited to Madame de Staël.
Oh! thou who art greatly mad, deign to spare me who am less mad.
The more complex the mind, the greater the need for the simplicity of play
I have no other but a woman's reason
I think him so because I think him so.