Nothing seems to me so likely to make people unhappy in themselves and at variance with others as the habit of killing time.

Pleasures take to themselves wings and fly away; true knowledge remains forever.

They say, 'Nothing can be done here!' I reply, 'I know no such word in the vocabulary I adopt!'

As you have learnt something of time, value and make a proper use of it. Once past, it knows no return; how necessary, then, that you spend it in improving your mind and fitting it for future happiness and usefulness.

Attention to any subject will in a short time render it attractive, be it ever so disagreeable and tedious at first.

I think even lying on my bed I can still do something.