The Is-Ought Equivalence

This book advocates the equivalence of "is" and "ought." Some concepts describing "what something is" inherently carry normative implications of "how things ought to be." For instance: •Truth is what ought to be believed. •Beauty is what ought to be liked. •Goodness refers to other-regarding intentions that ought to be liked. •"A is the cause of B" means for B not to occur, A ought not to occur. •Value is how things ought to be preferred. •Fairness is how interests ought to be balanced.