Wilkie Collins said this quote

Nothing in this world is hidden forever. The gold which has lain for centuries unsuspected in the ground, reveals itself one day on the surface. Sand turns traitor, and betrays the footstep that has passed over it; water gives back to the tell-tale surface the body that has been drowned. Fire itself leaves the confession, in ashes, of the substance consumed in it. Hate breaks its prison-secrecy in the thoughts, through the doorway of the eyes; and Love finds the Judas who betrays it by a kiss. Look where we will, the inevitable law of revelation is one of the laws of nature: the lasting preservation of a secret is a miracle which the world has never yet seen.