Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.
All that I am, or hope to be, I owe to my angel mother.
To support mother and father, to cherish partner and children, and to be engaged in peaceful occupation — this is the greatest blessing.
Opportunity is missed by most people because it is dressed in overalls and looks like work.
Genius is one per cent inspiration, ninety-nine per cent perspiration.
Prejudice is a burden that confuses the past, threatens the future and renders the present inaccessible.
All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.
There is no expedient to which a man will not go to avoid the labor of thinking.