Vin Diesel

Every actor has their own process. For me, I really need to stay in the pocket. So, if I'm on set and I'm in character, I'm not thinking like a producer. If I'm on set and I'm not in character, wardrobe and make-up, and I'm just coming on set for the moments that I'm not shooting, then I'm able to be the producer.

To ask questions can become the laziest and wobbliest occupation of a mind, but when you must yourself answer the problem that you have posed, you will meditate your question with care and frame it with precision.