Difficulties increase the nearer we approach the goal

Difficulties increase the nearer we get to the goal.

Piety is not a goal but a means to attain through the purest peace of mind the highest culture.

The formation of one's character ought to be everyone's chief aim.

It is in human nature to relax, when not compelled by personal advantage or disadvantage.

The older we get the more we must limit ourselves if we wish to be active.