Abstract
Practical reasoning often strikes philosophers as ungrounded. It seems to them that desires are to be justified by reasoning that proceeds from, inter alia, further desires, and these further desires are to be justified by reference to still further desires. Avoiding circularity and infinite regress requires justification to terminate in desires that are themselves unjustified, and thus, from the point of view of reasons, simply arbitrary. If techniques of justification merely transmit reason-giving force from premises to conclusions, then if the premises are arbitrary, not different in this respect from whims, the conclusions will be arbitrary as well.