Douglas Adams Quote
It is a rare mind indeed that can render the hitherto non-existent blindingly obvious. The cry 'I could have thought of that' is a very popular and misleading one, for the fact is that they didn't, and a very significant and revealing fact it is too.
Dirk Gently's Holistic Detective Agency (ed. Simon and Schuster, 2014) - ISBN: 9781476782997