:रसात्मक वाक्य काव्य हो (वाक्यं रसात्मकं काव्यम्) <ref>विश्वनाथ, '''साहित्यदर्पण''' १/२</ref>
:रमणीय अर्थ प्रतिपादन गर्ने शब्द काव्य हो (रमणीयार्थप्रतिपादकः शब्दः काव्यम्)<ref>जगन्नाथ, '''रसगङ्गाधर''' १/१</ref>
:पश्चिमी विद्वान् विलियम जे. लङ्गले साहित्यलार्इ यसरी परिभाषित गरेका छन्-'' Literature is the expression of life in words of truth and beauty; it is the written record of man's spirit, of his thoughts, emotions, aspirations; it is the history,and the only history, of the human soul. It is characterized by its artistic, its suggestive, its permanent qualities. Its two tests are its universal interest and its personal style. Its object, aside from the delight it gives us, is to know man, that is, the soul of man rather than his actions, and since it preserves to the race of ideals upon which all our civilization is founded, it is one of the most important and delightful subjects that can occupy the human mind.