The trick to not thinking is not adding energy to the equation in an effort to forcibly stop thinking from happening. It’s more a matter of subtracting energy from the equation in order not to barf the thoughts up and start chewing them over again.
Brad Warner (2010). “Sit Down and Shut Up: Punk Rock Commentaries on Buddha, God, Truth, Sex, Death, and Dogen's Treasury of the Right Dharma Eye”, p.43, New World Library