There Never Was A Sounder Logical Maxim

If An Opinion Can Eventually Go To The Determination Of A Practical Belief, It, In So Far, Becomes Itself A Practical Belief; And Every Proposition That Is Not Pure Metaphysical Jargon And Chatter Must Have Some Possible Bearing Upon Practice.

Mathematics Is Distinguished From All Other Sciences Except Only Ethics, In Standing In No Need Of Ethics.

We Shall Do Better To Abandon The Whole Attempt To Learn The Truthunless We Can Trust To The Human Mind's Having Such A Powerof Guessing Right That Before Very Many Hypotheses Shall Have Been Tried, Intelligent Guessing May Be Expected To Lead Us To One Which Will Support All Tests, Leaving The Vast Majority Of Possible Hypotheses Unexamined.

Upon This First, And In One Sense This Sole, Rule Of Reason, That In Order To Learn You Must Desire To Learn, And In So Desiring Not Be Satisfied With What You Already Incline To Think, There Follows One Corollary Which Itself Deserves To Be Inscribed Upon Every Wall Of The City Of Philosophy: Do Not Block The Way Of Inquiry.

By An Object, I Mean Anything That We Can Think, I.e. Anything We Can Talk About.