hypothesis

gr. hypó : hipótese, que significa em Platão um pressuposto ou uma suposição que, sem verificação, são aceitos como válidos pelos interlocutores de um diálogo para sua argumentação. [SCHÄFER]

Taylor: Ciência

SCIENCE. This word is sometimes defined by Plato to be that which assigns the causes of things; sometimes to be that the subjects of which have a perfectly stable essence; and together with this, he conjoins the assignation of cause from reasoning. Sometimes again he defines it to be that the principles of which are not hypotheses; and, according to this definition, he asserts that there is one science which ascends as far as to the principle of things.