You eventually want to get to the point you feel you are pushing to the absolute max you can. It takes time to get there. The trick is to lift smarter, not necessarily harder. Isolation of muscles, when you have developed to that level, is key. You can totally fatigue one body part and still be fine in the others.
I have had people come up to me and literally tell me, "I lift twice as hard and as long as you and you are bigger than me". Well, it's because I know HOW to lift and to focus on the areas I am working. Plus the perception that he is lifting harder than me is just that...perception. The amount of time spent in the gym is NOT a direct correlation to success in muscle growth, fat loss, etc. It is quality of time spent that matters.
Arttie
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