vital element

See: center, essence
References in classic literature ?
But if the destruction of the Union by one or by a part only of the States be lawfully possible, the Union is LESS perfect than before the Constitution, having lost the vital element of perpetuity.
During the convention, the scholars also reiterated that Finality of Prophethood (Peace Be Upon Him) is a vital element of Muslim religious beliefs.
With all the talk of higher education versus vocational courses one vital element is often missing.
It is important that we, as a community, recognise that a person's dignity contributes towards their health, well being and independence and is a vital element of the best possible care.
They know that pupils are a vital element in moving Heworth forward.
Some 500 self-employed New Zealand shearers spend around 10 weeks in the UK each summer and are a vital element in the workforce that shears 23m British sheep each summer.
When devising a succession plan, the financial stability of the business and of the family members is a vital element.
A vital element of the project is collaboration with design students from London's highly regarded Central St.
Telemarketing is an annoying yet vital element in both commerce and fund-raising, and it is not going away.
According to Carter and Grastris, this 21st-century service requirement, unlike an old-fashioned draft, would provide a vital element of personal choice.
He added: 'Post Office Ltd would like to confirm that this branch is a vital element of our rural network and there is no intention of closing it permanently.