It's important to realize that inquiry is about noticing, not about dropping the thought... Inquiry is not about getting rid of thoughts; it's about realizing what's true for you, through awareness and unconditional self-love. Once you see the truth, the thought lets go of you, not the other way around.
Loving What Is: How Four Questions Can Change Your Life (ed. Random House, 2008) - ISBN: 9781407026176