“The whole universe is change and life itself is but what you deem it.”

“The universe is change; our life is what our thoughts make it.”

“That which has died falls not out of the universe. If it stays here, it also changes here, and is dissolved into its proper parts, which are elements of the universe and of thyself. And these too change, and they murmur not".”

“The world is mere change, and this life, opinion.”

“Everything is only for a day, both that which remembers and that which is remembered."Observe constantly that all things take place by change, and accustom thyself to consider that the nature of the universe loves nothing so much as to change things which are and to make new things like them. For everything that exists is in a manner the seed of that which will be.”

“Observe the movements of the stars as if you were running their courses with them, and let your mind constantly dwell on the changes of the elements into each other. Such imaginings wash away the filth of life on the ground.”

“In the human life time is but an instant, and the substance of it a flux, and the perception dull, and the composition of the whole body subject to putrefaction, and the soul a whirl, and fortune hard to divine, and fame a thing devoid of certainty. And, to say all in a word, everything that belongs to the body is a stream, and what belongs to the soul is a dream and vapor, and life is a warfare and a stranger's sojourn, and after- fame is oblivion. What then can guide a man? One thing and only one, philosophy.”