Even if your competitor is still small in size or weak, you should take him seriously and treat him as a giant. Likewise, even if your competitor is massive in size, you shouldn't regard yourself as a weakling.
Jack MaIf you do not know where your competitor is, or overconfident and snobbish about your competitor, or are unable to comprehend how yourcompetitor became a real threat, you will surely fall behind him. Don't be the "they" in this idiom: First they ignore you, then they laugh at you, then they fight you, then you win.
Jack Ma