All forms of work, manual or intellectual, are called labour. A clerk works in the office. A teacher teaches students at school. A doctor practises medicine. A lawyer practises law. The work of all these men is mainly brain work. A cultivator works in the field. A miner works in the mine. An artisan works in a factory. Their work requires bodily labour. When we say that the work of the cultivators, miners, artisans, etc, is as respectable as the work of the clerk, the teacher, the doctor, and the lawyer, we mean there is dignity of labour.