live a life of wanton extravagance(in the lap of luxury)

no ways and means for living

study and train hard

of great promise

zigzag(in and out)

profuse(the fat of the land)

at random(at six and sevens)

say something under one's breath(speak in a mild tone)

be puffed up with overbearing pride

to have a feeling for sth (affection, sympathy, passion etc)

coarse fare(homely fare)

affectionate(intimate)

throw on the scrapheap(toss on the scrapheap)

an unsettled state of mind

seek talent with eagerness

the holt's and whys of a matter

be at one's wit's end

seven passions and six desires(the seven emotions and the six sensory pleasures)

force sb. to do sth.

absurd argument