Leibniz dedicated his life to efforts to educate people to understand that true happiness is found by locating their identity in benefitting mankind and their posterity.
Life is not an easy matter... You cannot live through it without falling into frustration and cynicism unless you have before you a great idea which raises you above personal misery, above weakness, above all kinds of perfidy and baseness.
The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life, for only then do they have to fall back on their reserves.
I plot the first 5 or 6 chapters quite minutely, and also the end. So I know where I am going but not how I'm going to get there, which gives characters the chance to develop organically, as happens in real life as you get to know a person.
As to that leisure evening of life, I must say that I do not want it. I can conceive of no contentment of which toil is not to be the immediate parent.
A woman's life is not perfect or whole till she has added herself to a husband. Nor is a man's life perfect or whole till he has added to himself a wife.
The true picture of life as it is, if it could be adequately painted, would show men what they are, and how they might rise, not, indeed to perfection, but one step first, and then another on the ladder.