Every one of the great revolutionists, from Isaiah to Shelley, have been optimists. They have been indignant, not about the badness of existence, but about the slowness of men in realizing its goodness.
And the more you become aware of the unknown self - if you become aware of it - the more you realize that it is inseparably connected with everything else that is.
A votary of ahimsa cannot subscribe to the utilitarian formula (of the greatest good of the greatest number). He will strive for the greatest good of all and die in the attempt to realize that ideal.