"Sunny days / chasing the clouds away..."

cosmos - 1: an orderly harmonious systematic universe.

chance - 1 a: something that happens unpredictably without discernible human intention or observable cause. b: the assumed impersonal purposeless determiner of unaccountable happenings: Luck c: the fortuitous or incalculable element in existence

science - 1 a : the state of knowing : knowledge as distinguished from ignorance or misunderstanding 2 a : a department of systematized knowledge as an object of study b : something (as a sport or technique) that may be studied or learned like systematized knowledge 3 a : knowledge or a system of knowledge covering general truths or the operation of general laws especially as obtained and tested through scientific method b : such knowledge or such a system of knowledge concerned with the physical world and its phenomena : NATURAL SCIENCE4 : a system or method reconciling practical ends with scientific laws

logic - 1 a (1) : a science that deals with the principles and criteria of validity of inference and demonstration : the science of the formal principles of reasoning

-Merriam-Webster Online Dictionary

"Which one of these things does not belong? Which one of these things is not like the other?"