Learning without thought is naught; thought without learning is dangerous. 

To know what we know, and know what we do not know, is wisdom.

There is three things the superior man will guard against.

In youth … lust.

When hi is strong …. Quarrelsomeness

When he is old …. covetousness.

If a man remembers what is right at the sign of profit, is ready to lay down his life in the face of danger, and does not forget sentiments he has repeated all his life when he has been in straitened circumstances for a long time, he may be said to be a complete man.

- Confucius

Man’s abiding happiness is not in getting anything but in giving himself up to what is greater than himself, to ideas which are larger than his individual life, the idea of his country, of humanity, of God.

Rabindranath  Tagore

Man has a fund of emotional energy, which is not all occupied with his self-preservation. This surplus seeks its outlet in the creation of art, for man’s civilization is built upon his surplus... In everyday life, when we are mostly moved by our habits, we are economical in our expression, for then our soul-consciousness is at its low level - it has just volume enough to guide on in accustomed grooves. But when our heart is fully awakened in love, or in other great emotions, our personality is in its flood-tide.

Rabindranath  Tagore