“The beginning is the most important part of the work.”
Beginnings shape habits and direction, so the first stage of a serious undertaking deserves unusual care.
Source details
The Republic, Book II, Benjamin Jowett translation. The retained catalog wording is a shortened common form of Jowett’s longer sentence, “the beginning is the most important part of any work, especially in the case of a young and tender thing”; it should not be presented as a verbatim full sentence from the represented edition.