What does Kalam mean to say when he mentions 'Life Force in his speech: "Great Books Born Out of Great Minds'?

In Dr. A.P.J. Abdul Kalam's speech "Great Books Born Out of Great Minds," when he mentions the "Life Force," he is referring to the inner energy, inspiration, or driving spirit that resides within a person. This "Life Force" is what pushes someone to create, to think deeply, and to write meaningfully—especially when it comes to creating great books or works of literature.

Kalam suggests that this Life Force enables authors to pour their thoughts, emotions, and ideals into their writing. It goes beyond just intellect or skill—it's a deeper motivation, often tied to a purpose or vision. For example, he talks about how writers like Thiruvalluvar, Shakespeare, or Tolstoy used their Life Force to bring forth ideas that have inspired generations.

In essence, by mentioning the Life Force, Kalam highlights the power of passion, purpose, and creativity—that inner spark that transforms ordinary thoughts into timeless works.