A long time ago, my dad told me, "Don't let people rent space in your head." This single comment made a huge impact in many ways. Think for yourself. What does your gut tell you? Follow your heart. All harp the same tone of staying true to yourself. So, when so-and-so says your idea is stupid, never mind them. Don't let other's doubts kill your dream! What do they know anyway? If you believe in yourself, then you're halfway there. Next time someone disregards a goal of yours, tell them (with a smile), "Tigers can't be bothered by the opinions of sheep!"