We Can Change Our Circumstances By A

Habit Is A Second Nature, Or Rather, It Is 'ten Times Nature'.

Lives Based On Having Are Less Free Than Lives Based Either On Doing Or Being.

Pessimism Leads To Weakness. Optimism Leads To Power.

I Believe There Is No Source Of Deception In The Investigation Of Nature Which Can Compare With A Fixed Belief That Certain Kinds Of Phenomena Are Impossible.

Truth Lives, In Fact, For The Most Part On A Credit System