When Pierpont was finally well enough to return to the US and finish his secondary education, he felt invigorated by his relatively clean bill of health.
The arrival of large numbers of big fish like wahoo and tuna has also invigorated California's saltwater sport fishing industry, which generates an estimated $1.8 billion a year.
If, as many scientists expect, future space missions cast doubt on that assumption or outright disprove it by finding remnants of microbial life on other planets, it will be both invigorating and illusion-shattering.
" With pleasure" ! Monsieur Homais replied; " besides, I must invigorate my mind, for I am getting rusty here. We'll go to the theatre, to the restaurant; we'll make a night of it" .