The Dalai Lama re-emphasized this

Right from the moment of our birth, we are under the care and kindness of our parents, and then later on in our life when we are oppressed by sickness and become old, we are again dependent on the kindness of others. Since at the beginning and end of our lives we are so dependent on other´s kindness, how can it be in the middle that we would neglect kindness towards others?Suffering originates from various causes and conditions. But the root cause of our pain and suffering lies in our own ignorant and undisciplined state of mind. The happiness we seek can be attained only through the purification of our minds.