I think if you get asked to do this, then that's called doing your homework, and I try and do it.
The sound of 'gentle stillness' after all the thunder and wind have passed will the ultimate Word from God.
The poorer is a family, the greater is the proportion of the total outgo which must be used for food... The proportion of the outgo used for food, other things being equal, is the best measure of the material standard of living of a population.