There's no satisfaction without a struggle first.
The endurance athlete is the ultimate realist.
There are no secrets to running success,anyone who says there are is probably trying to sell you something.
Run your own race at an even pace. Consider the course, the temperature, the weather, and most importantly, your current level of fitness.
Happy people don't run a 3:47 mile.
Overtraining is the biggest problem incurred by runners who lack the experience or discipline to cope with their own enthusiasm.