Here you can practice Vim with context-aware help menu.
e.g. if you press 'd', you see that the list on the right changes: it will show (some of the) Vim command combinations that start with 'd'.

Now it is plain that everything which is a subject of praise is praised for being of a certain kind and bearing a certain relation to something else:!LINE_BREAK!for instance, the just, and the valiant, and generally the good man, and virtue itself, we praise because of the actions and the results: and the strong man, !LINE_BREAK!and the quick runner, and so forth, we praise for being of a certain nature and bearing a certain relation to something good and excellent (and this is illustrated by attempts to praise the gods;!LINE_BREAK!for they are presented in a ludicrous aspect by being referred to our standard, and this results from the fact, that all!LINE_BREAK!– Aristotle