pushing the limits

it has been a very busy day for me,but i am not tired.i think activeness and laziness both are contagious.on any normal working day i am very punctual,wake up early,go to gym,go to duty,perform other regular household duties,study.everything picture perfect.but on holiday i am as lazy as bovine.it is said that greed,appetite and sleep are like spring,you can strech them or can limit them,how correct.challenging your limits is always a fun. tough pill to swallow?,read this-
thomas a. edison stuck continuously at one job for 5 days without going to bed,and he kept on at another experiment for 48 hours without a shift of attention.noah webster took took 30 years to complete his dictionary.alexander dumas wrote 18 hours a day for 40 years.sir harry lauder,the scottish comedian,tried out his song"roamin in the gloamin"10,000 times to perfect it for the stage.maurice ravel worked 12 hours a day for two years composing a piano concert.

(i came across some good lines,just want to share-
jane kis dhandali se subah ko kehte hai sham log,
dene lage hai jhuth ko sach ka mukam log,
chehre ki dhul pe na padegi nigah apni,
ilzaam aaine pe rakhte hai tamam log.)