of supreme importance

See: crucial
References in classic literature ?
It is a point which is continually turning up in criminal trials, and which is sometimes of supreme importance as a clue.
During the winter of that year and the early spring of 1891, I saw in the papers that he had been engaged by the French government upon a matter of supreme importance, and I received two notes from Holmes, dated from Narbonne and from Nimes, from which I gathered that his stay in France was likely to be a long one.
It did not seem to them of supreme importance. Or it may be as Helen supposed: they realized its importance, but were afraid of it.
Continuity is of supreme importance as the holy river has been admitted in the Intensive Care Unit for many years.
CM said that both the projects were of supreme importance that would change landscape of the province by integrating the whole region and opening KP for promoting of tourism industry, agriculture productivity, improving infrastructure development for Reshakai Economic zone and opening new vistas of trade and commercial activities in the province.
Yesterday's ranting on TV to avoid direct, detailed answers to legitimate questions about oodles of cash influencing a national decision of supreme importance was the performance of a man losing control.
Speaking on the occasion, Brig Naeem Akbar said that security forces were fully alert and capable to keep peace and normalcy in the district, adding continuous support of elders and people was of supreme importance in this regard.
He also said that public cooperation is of supreme importance in eliminating aerial firing, narcotics selling, gambling and other social crimes.
Mustafa Surour, from Oman Arab Bank, said that investing in the best security for our IT infrastructure is of supreme importance to us, as we continue to expand our business.
In a democratic process of supreme importance such as an election, the rules should not be changed in the middle of the game - much less after.
Customer retention is of supreme importance and effective measures need to be deployed in business strategy to achieve it.
However, the ICT administration along with CDA, WHO, and UNICEF, on a war-footing basis, overcame this issue of supreme importance.