First axiom of walking
The interest of the walker’s thoughts increase in direct proportion to his load being lightened and the day cooling. Gradient is only important at extreme ends of the spectrum.
Second axiom
Nothing beats walking along a contour high above a great evolving view.
Third axiom
The second axiom can be entirely nullified if your boots are hurting you badly.
Fourth axiom
Racing downhill with a load on will damage your knees eventually even if you think it won’t.
Fifth axiom
Passes beat summits every time on a multiday hike.