The highest forms of understanding we can achieve are laughter and human compassion.
To grow old is to pass from passion to compassion.
One's life has value so long as one attributes value to the life of others, by means of love, friendship, indignation and compassion.
If you want others to be happy, practice compassion. If you want to be happy, practice compassion.
Love and compassion are necessities, not luxuries. Without them humanity cannot survive.