He who knows that enough is enough will always have enough.

A person starts to live when he can live outside himself.

All the powers in the universe are already ours. It is we who have put our hands before our eyes and cry that it is dark.

Change is inevitable. Growth is optional.

The best way to predict the future is to create it.

Against stupidity, God Himself fights in vain.

Reason teaches all mankind that being all equal and independent, no one ought to harm another.