What do you mean by nature? Just see how foolish they are. They cannot explain what is this nature. Simply say. I'm simply sorry that the so-called institution, education, simply making people all fools and rascals. That is my grief only: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.