The only way to be truly satisfied is to do what you believe is great work.
The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.
There are no eternal facts, as there are no absolute truths.
"In the darkest times, hope is something you give yourself. That is the meaning of inner strength."