A wave is never found alone, but is mingled with as many other waves as there are uneven places in the object where the said wave is produced.
It is easier to contend with evil at the first than at the last.
Our life is made by the death of others.
One can have no more mastery over the environment, than one has over himself.
I am never weary of being useful... In serving others I cannot do enough. No labor is sufficient to tire me.
Beyond a doubt truth bears the same relation to falsehood as light to darkness.