Certainly, he said, both in men and women those years are the prime of physical as well as of intellectual vigour.

And all this intellectual vigor was joined to a warm and unpretentious personality.

It used irony and humour to celebrate the intellectual vigour of his classmates.

At first, it was tempting to put these failings down to want of intellectual vigour.

But he was full of intellectual vigor as he answered questions at the news conference.

The important test of a new government's intellectual vigor does not lie in birth dates, but in the ideas it is willing to fight for.

But she's determined that he will grow up with Russian intellectual vigor.

But he also has a great intellectual vigor.

We need the same intellectual vigor and vision.

He "brought to his position force of personality, intellectual vigor and physical endurance."