The rain is plentious

The rain is plentious but, by God’s decree,
Only a third is meant for you and me;
Two-thirds are taken by the growing things
Or vanish Heavenward on vapour’s wings:
Nor does it mathematically fall
With social equity on one and all.
The population’s habit is to grow
In every region where the water’s low:
Nature is blamed for failings that are Man’s,
And well-run rivers have to change their plans.
A. P. Herbert

A man who has

A man who has made up his mind on a given subject twenty-five years ago and continues to hold his political opinions after he has been proved to be wrong is a man of principle; while he who from time to time adapts his opinions to the changing circumstances of life is an opportunist.
A. P. Herbert