Here is a summary of the article in one paragraph: This tutorial teaches developers how to send SMS messages using Twilio and Golang. The author starts by explaining the basics of Golang programming and then uses it to generate random quotes from an array, which are then used to send SMS messages via Twilio. To do this, the developer must first sign up for a Twilio account, create a new program in Golang that imports the necessary packages, sets up the Twilio credentials, and creates an HTTP POST request client. The program then makes a POST request to Twilio's API with the quote as the message body, sender and receiver phone numbers, and authentication tokens. If the request is successful, the developer can confirm that the SMS was sent by navigating to Twilio's Programmable SMS dashboard.