自律的英语句子包括：

Self-discipline is the cornerstone of success.

自律是成功的基石。

Self-discipline keeps one focused.

自律让人保持专注。

Without self-discipline, it's hard to achieve anything.

缺乏自律，难以取得成就。

Self-discipline is the key to success.

自律是成功的关键。

A self-disciplined child is more likely to succeed in school and in life.

自律的孩子更有可能在学校和生活中取得成功。

这些句子都强调了自律在成功和个人发展中的重要性和作用。