What does the suffix -ist mean in the word optimist?

"she is his achilles' heel" is an example allusion alliteration simile personification

Read this adapted excerpt from a famous poem by john keats. this poem is about a beautiful vase with intricate shapes and patterns. you, silent form, do tease us out of thought as does etemity: cold pastorall when old age shall this generation waste, you shall remain in the middle of other woe than ours, a friend to man, to whom you say "beauty is truth, truth beauty that is all you know on earth, and all you need to know what is the poet saying when he writes that "old age shall this generation waste"? the poet is expressing his dread of growing older the poet is mourning the changes he sees in his "generation." the poet is saying that beauty is illusionary and short-lived. the poet is saying that people don't live long; life is brief

Read the excerpt from "mother tongue." those tests were constructed around items like fill-in-the-blank sentence completion, such as “even though tom was mary thought he was ” and the correct answer always seemed to be the most bland combinations of thoughts, for example, “even though tom was foolish, mary thought he was ridiculous.” well, according to my mother, there were very few limitations as to what tom could have been and what mary might have thought of him. so i never did well on tests like that. how does tan build a central idea of her story in the excerpt? tan discusses the types of questions on achievement tests to support the idea that the tests limit students’ ability to write well. tan explains a question on a language achievement test to support the idea that the tests should include more interesting content. tan gives an example of her experience with achievement tests to support the idea that they are not always accurate measures of language ability. tan considers how her mother might answer a question on a test to support the idea that nonstandard english limits a person’s ability to communicate.