If you concern yourself with telling or showing people how interesting you are, you will at best provoke a… — Derren Brown

If you concern yourself with telling or showing people how interesting you are, you will at best provoke a temporary response of polite interest until even that gives way to annoyance. If you let people find it out for themselves, you become a real source of fascination.

Source: Wikiquote · CC BY-SA 4.0