Why do we lie?
We lie because we are afraid of someone, something or to escape from an embarrassing situation. Leave the exceptional cases. When you lie, you learn escapism. It becomes a habit. You start lying for small things unintentionally by your sub conscious mind.
When you starting being honest, you will grow. You will learn more than what you learn when you escape.
Whenever I hear the word honesty, I remember Gandhiji. It requires immense mental strength and daring to always stick to the truth.
As a teenager, Gandhi stole a bit of gold from his brother's because he needed money. Haunted by what he had done, Gandhi later confessed his crime to his father, fully expecting his father's unbridled fury. Instead, his father broke down and wept. The experience was a major turning point in Gandhi's life. He later wrote: "Those pearl drops of love cleansed my heart and washed my sin away."
-Biography of M.K. Gandhi