beautiful mountains and rivers

strong(be robust and strong)

gigantic and igorous

ponder over(think of the past and future)

let things drift if they do not affect one personally

an ass in a lion's skin(be weak inside though fierce in countenance;appear severe but weak inside)

as well blended as milk and water(get along swimmingly with each other)

a cut below(just a little bit worse)

talk about all sorts of subjects without restraint

Time and tide wait for no man

When water flows; a channel is formed.

regard oneself as infallible(consider oneself always in the right; be opinionated)

full of vigour

do as one chooses(take things easy)

lick blood and swear

wanton(of easy virtue)

one of the few still left

indulge in idle gossip

always with a book in one's hand

have only a hazy notion(not fully understand)