What it means to laugh?

Let’s go through following excerpts from different philosophers and poets and wonder about laughter.

“The only intelligent tactical response to life’s horror is to laugh defiantly at it.” – Soren Kierkegaard.

“I have never copied nobody even half and at any master who lacks the grace to laugh at himself I laugh.” – Friedrich Nietzsche

"You will not tame this sea either by humility or rapture. But you can laugh in its face.

Laughter was invented by those who live briefly as a burst of laughter.”

The eternal sea will never learn to laugh" – Poem by Anna Swir, a Polish Poet