We can be sure that the greatest hope for maintaining equilibrium in the face of any situation rests within ourselves.
Because we don't think about future generations, they will never forget us.
The moment we begin to fear the opinions of others and hesitate to tell the truth that is in us, and from motives of policy are silent when we should speak, the divine floods of light and life no longer flow into our souls.
On the plus side, death is one of the few things that can be done just as easily lying down.
It is easier to exclude harmful passions than to rule them, and to deny them admittance than to control them after they have been admitted.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man.
Always be nice to those younger than you, because they are the ones who will be writing about you.