 If this technique fails, Pólya advises: p114 "If you can't solve a problem, then there is an easier problem you can solve: find it."
<fluency>  If this technique fails, Pólya advises: p114 "If you can't solve a problem, then there is an easier problem you can solve: find it."
 If this technique fails, Pólya advises: p. 114 "If you can't solve a problem, then there is an easier problem you can solve: find it."