The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
When people attempt to rebel against the iron logic of Nature, they come into conflict with the very same principles to which they owe their existence as human beings. Their actions against Nature must lead to their own downfall.
Life is not as idle ore,
But iron dug from central gloom,
And heated hot with burning fears,
And dipt in baths of hissing tears,
And batter'd with the shocks of doom,
To shape and use.
A man's usefulness depends on his living up to his ideals insofar as he can. It is hard to fail but it is worse never to have tried to succeed. All daring and courage, all iron endurance of misfortune, make for a finer, nobler type of manhood. Only those are fit to live who do not fear to die; and none are fit to die who have shrunk from the joy of life and the duty of life.
We have become great because of the lavish use of our resources ... But the time has come to inquire seriously what will happen when our forests are gone, when the coal, the iron, the oil and the gas are exhausted.
My child, what I want is muscles of iron and nerves of steel, inside which dwells a mind of the same material as that of which the thunderbolt is made.
A golden chain is as much a chain as an iron one. Shri Ramakrishna used to say that, to pick out one thorn which has stuck into the foot, another thorn is requisitioned, and when the thorn is taken out, both are thrown away. So the bad tendencies are to be counteracted by the good ones, but after that, the good tendencies have also to be conquered.
Really living without clutter takes an iron will ... This involves eternal watchfulness and that oldest and most relentless of the housewife's occupations, picking up. I have a feeling that picking up will go on long after ways have been found to circumvent death and taxes.
I will perform the function of a whetstone, which is about to restore sharpness to iron, though itself unable to cut.
[Lat., Fungar vice cotis, acutum
Reddere quae ferrum valet, exsors ipsi secandi.]
Even a superficial glance is sufficient to show that all the innumerable forms in which the life-urge of Nature manifests itself are subject to a fundamental law - one may call it an iron law of Nature - which compels the various species to keep within the definite limits of their own life-forms when propagating and multiplying their kind.
As great Pythagoras of yore,
Standing beside the blacksmith's door,
And hearing the hammers, as they smote
The anvils with a different note,
Stole from the varying tones, that hung
Vibrant on every iron tongue,
The secret of the sounding wire.
And formed the seven-chorded lyre.