When Goethe says that in every human condition foes lie in wait for us, "invincible only by cheerfulness and equanimity," he does not mean that we can at all times be really cheerful, or at a moment's notice; but that the endeavor to look at the better side of things will produce the habit, and that this habit is the surest safeguard against the danger of sudden evils.
Leigh HuntGod made both tears and laughter, and both for kind purposes; for as laughter enables mirth and surprise to breathe freely, so tears enable sorrow to vent itself patiently. Tears hinder sorrow from becoming despair and madness.
Leigh HuntIf you are melancholy for the first time, you will find, upon a little inquiry, that others have been melancholy many times, and yet are cheerful now.
Leigh Hunt