What does this quote means; "i must judge for myself, but how can i judge, how can any man judge, unless his mind has been opened and enlarged by reading"

When in college, greg dreamed of rowing in the olympics and becoming a surgeon. now at age 48, he continues to enjoy rowing, although he never made it to the olympics and he works as an anesthesiologist. his wife and kids are healthy and he is basically content. according to erikson, he is most likely to experience

Which situation is most likely to show a constant rate of change?

Calculate the iq of a 20 year old who has the mental age of 25