Xue Sheng
All weight is underside
Old story but I like to throw it out were applicable
A young man went to visit an old master, looking to train under him. When he met with the master, the man said to him "I wish to train under you and become a great master. How long must I train?". The Master replied "10 years". The man thought for a moment, then said "10 years is a long time, what if I train twice as hard as your other students. How long must I train then?". The Master then replied "20 years". The man then exclaimed "20 years!? What if I train every day and night as hard as I can?". The Master then replied "30 years". The man, dumbfounded by this, asked "Why is it every time I say I will train harder, you say it will take longer?", and with that, the Master replied "Because if you have one eye fixed on a goal, then you have only one eye left with which to seek the way".