When all is said and done, success without happiness is the worst kind of failure.
Making it to the top of the ladder doesn't feel good if you are burned out when you get there. It is important along the way to take time to feed your souls, delight in friendship, and laugh at yourself. It may take longer to get to our summit, but we will get there with the personal energy and relationships to really enjoy it.
Whatever you do, do your work heartily, as for the Lord rather than for men, knowing that from the Lord you will receive the reward of the inheritance.