Let positive, strong, helpful thoughts enter into your brains from very childhood. Lay yourselves open to these thoughts, and not to weakening and paralysing ones.
Everybody has a responsibility for what they put out into the world. Rather than trying to figure out what other people should be doing, work on your own interactions in the world and whatever influence they have. All of it has an effect.
I have found that the greatest degree of inner tranquility comes from the development of love and compassion. The more we care for the happiness of others, the greater is our own sense of well-being. Cultivating a close, warmhearted feeling for others automatically puts the mind at ease. It is the ultimate source of success in life.
Go and preach to all, 'Arise, awake, sleep no more: within each of you there is the power to remove all wants and all miseries. Believe this, and that power will be manifested.