Health is the greatest possession. Contentment is the greatest treasure. Confidence is the greatest friend. Non-being is the greatest joy.
Because one believes in oneself, one doesn't try to convince. Because one is content with oneself, one doesn't need others' approval. Because one accepts oneself, the whole world accepts him or her.
The truly wise are content to be last. They are, therefore, first. They are indifferent to themselves. They are, therefore self-confident.
Kindness in words creates confidence.