No Pain, No Gain
The proverb conveys that we can never succeed without trying out something and facing failures. Any person who sits idle and do not do any labour cannot gain anything in their life.
As no prey can enter the mouth of sleeping lion, those who do not take pains in life can’t be successful in their life. Without adequate effort we cannot get any result. The farmer must plough the land, then make the land moist and then plant the seeds, pluck out the weeds, protect the crops from insects and finally he arrives at a good harvest.
He has to go through all these process and do them systematically so as to have a good harvest. He cannot just drop the seeds on the land and expect them to grow into a good crop.
Similar to this a student must put in a good deal of hard work for a considerable length of time to attain a proper qualification. He cannot buy the books and sit and relax and think that he will attain a qualification.
A person who sits idle and does nothing wastes his own time. The great inventors have achieved so much only by labouring for years together with a singular objective. So if we take strenuous efforts we can succeed or we cannot gain anything if we do not take efforts.