The confidence placed in physical theory owes much to its possessing the same kind of excellence from which pure geometry and pure mathematics in gen… - Michael Polanyi

The correct reading of <math>\vdash</math> p written down by me in good faith is therefore 'I believe p', or some other words expressing the same fiduciary act.

Whitehead and Russell ... translate <math>\vdash</math> p imples q into the words 'it is asserted that p implies q'. But the phrase 'it is asserted' suggests an impersonal happening of assertions: 'it is asserted' as 'it is raining' or 'it happens'. The value of the assertion sign is lost if we allow ourselves to revert in our verbal translation of it to the muddle of a declaratory sentence which asserts itself or is impersonally asserted by nobody in particular.

Our view of life must account for how we know life; biological theories must allow for their own discovery and employment. Theories of evolution must provide for the creative acts which brought such theories into existence. Beginning with our own embodiment our theory of knowledge must endorse the ways we manifestly transcend our embodiment by acts of indwelling and extension into more subtle and intangible realms of being, where we meet our ultimate ends.