There is nothing deep down inside us except what we have put there ourselves.

Deep down, I'm pretty superficial.

Deep down, there is in the substance of the cosmos a primordial disposition, sui generis, for self-arrangement and self-involution.

Deep down, I happen to be very shallow.

I feel safe in white because deep down inside, I'm an angel.

I always joke deep down I'm really a teenage girl on the inside.