Perfection is an impossible destination
Doing the unrealistic is easier than doing the realistic.
I'm not a fan of idleness, except in small doses.
The key to having more time is doing less, and there are two paths to get there, both of which should be used together: (1) Define a short to-do list and (2) define a not-to-do list.
It's not enough to have the right answers. You have to have the right questions.
I discourage passive skepticism, which is the armchair variety where people sit back and criticize without ever subjecting their theories or themselves to real field testing.