If man’s life is immortal, so also is the animal’s.
The difference is only in degree and not kind. The amoeba and I are the same.
The difference is only in degree and from the standpoint of the highest life, all these differences vanish.
A man may see a great difference between grass and a little tree, but if you mount very high, the grass and the biggest tree will appear the same.
So from the standpoint of the highest ideal, the lowest animal and the highest man are the same.
If you believe there is a God, the animals and the highest creature must be the same.
From the highest to the lowest to the most wicked man, in the greatest of human beings and the lowest of crawling worms under our feet, is the soul pure and perfect, infinite and ever-blessed. In the worm, that soul is manifesting only an infinitesimal part of its power and purity, and in the greatest man it is manifesting most of it. The difference consists in the degree of manifestation, but not in the essence. Through all beings exists the same pure and perfect soul.
—Swami Vivekananda