<p>The teachings of Guru Nanak, the founder of Sikhism, remain highly relevant in the contemporary world. His philosophy emphasized universal brotherhood, equality, social justice, spiritual devotion, and honest living. In an era characterized by materialism, social inequality, religious conflicts, and moral challenges, Guru Nanak&rsquo;s teachings provide guidance for building a peaceful and ethical society. This paper explores the key principles of Guru Nanak&rsquo;s philosophy and examines their significance in addressing modern social, ethical, and educational issues.</p>