Necessity is the theme and the inventress, the ete — Leonardo da Vinci
Necessity is the theme and the inventress, the eternal curb and law of nature.
And in knowing that you know nothing, that makes you the smartest of all.
Sócrates
Men are born ignorant, not stupid; they are made stupid by education.
Bertrand Russell
Ninety percent of the politicians give the other ten percent a bad reputation.
Henry Kissinger
A friend to all is a friend to none.
Aristóteles