Noun
The quality or state of being vital; the principle of life; vital force; animation; as, the vitality of eggs or vegetable seeds; the vitality of an enterprise.
Source: Webster's dictionaryTo revolt is a natural tendency of life. Even a worm turns against the foot that crushes it. In general, the vitality and relative dignity of an animal can be measured by the intensity of its instinct to revolt. Mikhail Bakunin
Mathematical science is in my opinion an indivisible whole, an organism whose vitality is conditioned upon the connection of its parts. David Hilbert
You can measure a programmer's perspective by noting his attitude on the continuing vitality of FORTRAN. Alan Perlis
Vitality shows not only in the ability to persist, but in the ability to start over. F. Scott Fitzgerald
The cure for all the ills and wrongs, the cares, the sorrows, and crimes of humanity, all lie in that one word LOVE. It is the divine vitality that produces and restores life. Lydia Maria Child
The imagination loses vitality as it ceases to adhere to what is real. Wallace Stevens