धर्मार्थकाममोक्षाणां यस्यैकोऽपि न विद्वते। अजागलस्तनस्येव तस्य जन्म निरर्थकम्॥ C.Hariharan of The Madras Sanskrit college gives short lecture series (3-5 mins each) with one Sanskrit Shloka a day with simple meaning inTamil language. Here a famous niti shloka is explained. Image source: Google