There is no pain so great as the memory of joy in present grief.

Some are born great, some achieve greatness, and some have greatness thrust upon them.

Nothing great in the world has ever been accomplished without passion.

All difficult things have their origin in that which is easy, and great things in that which is small.

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.

The greatest way to live with honor in this world is to be what we pretend to be.

Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.

A little thought and a little kindness are often worth more than a great deal of money.

Great things are not accomplished by those who yield to trends and fads and popular opinion.

Hate is too great a burden to bear. It injures the hater more than it injures the hated.