After I had thought about this elementary question fundamentally, I came to the conclusion that the difference, which is often described as "considerable" or "substantial" by distinguished people, between the indispensable words "important" and "essential" isn't significant, but rather is irrelevant.
Ko sem o tem osnovnem vprašanju razmislil temeljito, sem prišel do zaključka, da razlika, ki jo priznani ljudje velikokrat opišejo kot "znatno" ali "občutno", med nepogrešljivima besedama "pomemben" in "ključen" ni precejšnja, ampak je kar zanemarljiva.