Effort Quote by William James

“Metaphysics means nothing but an unusually obstinate effort to think clearly. The fundamental conceptions of psychology are practically very clear to us, but theoretically…

— William James

Metaphysics is the science of proving what we don't understand.

— Josh Billings

There’s enough metaphysics in not thinking about anything.

— Fernando Pessoa

Metaphysics is a cobweb that the mind weaves around things.

— Edward Abbey

Metaphysics is almost always an attempt to prove the incredible by an appeal to the unintelligible.

— H. L. Mencken

“Metaphysics is… at the root of all other sciences, which indeed presuppose it. It has been abandoned by the modern mind, which seems to…

— Dom Eugene Boylan

“Human understanding is limited—and the things that metaphysics seeks to know, we can never know.”

— T.Z. Lavine

Metaphysics must be based on what exists, for it has the task of explicating it.

— Franz Grillparzer

Metaphysics is a science.

— Gabriel Marcel

Metaphysics, in whatever latitude the term be taken, is a science, or complement of sciences, exclusively occupied with mind.

— Sir William Hamilton, 9th Baronet

“In the 1920s, there was a dinner at which the physicist Robert W. Wood was asked to respond to a toast ... 'To physics…

— Carl Sagan

“My object is to persuade all those who think metaphysics worth studying that it is absolutely necessary to pause a moment and, disregarding all…

— Immanuel Kant