A great saying when it comes to trading. It can be applied both literally and in relation to a sudden market crash. This saying applies in my strategy on trading both Bitcoin and other alts. I am not sure when will the drop of price will stop so I wait even though the price is already low for a good buy to make my entry point more effective. Red candles in the long run will eventually consolidate and move back up and so what I do is to look for that consolidation of prices and apply different studies if the price is now bound to go up or if it will still go down. Trading effectively and efficiently can be achieved if you apply different studies to the graph.