Which famous atheist made this statement?

"I had motives for not wanting the world to have meaning; consequently I umed that it had none, and was able without any difficulty to find satisfying reasons for this umption. Most ignorance is invisible ignorance. We do't kow because we don't want to know. The philosopher who finds meaning in the world is not concerned exclusively with a problem of pure metaphysics; he is concerned to prove that there is no valid reason why he should not do as he wants to, or why his friends should not seize power and govern in a way that is most adavantageous to themselves...For myself the philosophy of meaninglessness was essentially an instrument of liberation being political, economic and ual. I thought this was the most honest quote I have read by any atheist. Any thoughts?