Whereas most physics tutors try their very best to avoid displaying their certificates, Mr. Phang does exactly the opposite (try Google around).

From every school, at every level, Mr. Phang's tuition students produce far superior results than their contemporaries from the same school who go to any other tutor in Singapore (click "News" or "Testimonials").

The reason is that Mr. Phang's students have wiser parents who work in professions that emphasise evidence rather than hot air.

Wisdom is similar to an individual's height in that both are hereditary.

Wiser parents will know that if a tutor really has good stuff, there is absolutely no reason to hide them.