If a student were to produce some mathematics that was wrong or trivial, he would let that student down quite firmly, but would always be careful to leave the student's self-esteem intact.
Kung ang isang mag-aaral ay upang makabuo ng ilang matematika na ay mali o walang kuwenta, siya ay ipaalam na mag-aaral down lubos na matatag, ngunit gusto laging maging maingat na umalis ang mag-aaral ng pag-ibig sa sarili na hindi nagagalaw.