The only thing that matters is greater glory to God.

Tomorrow I will pray to our Lord for you and for your concerns more than I can express. In times when a great wrath of war burdens a person, so terrifying and merciless, even the most attentive human sympathies can seem very fragile and completely futile; however, if they are supported by our Lord, they are in fact very powerful.
We are all watching with interest the slow development of the great offensive. More than ever, this is a time to be firm in the conviction that the only thing that matters is the greater glory of God, arising from all this chaos – and also in the faith that this greater glory will govern events and extract from them the very marrow and essence of lasting good…
I received socks and with them a package. Thank you…

(Pierre Teilhard de Chardin SJ /1881–1955/, letter from the front, to a cousin, June 29, 1916;
quoted from the book Pierre Teilhard de Chardin, The Birth of Thought. Letters 1914–1919, Malvern 2021)