• it is during our darkest moments that we must focus to see the light

• the roots of education are bitter, but the fruit is sweet

• it is the mark of an educated mind to be able to entertain a thought without accepting it

• there is no great genius without the touch of madness

• anybody can become angry - that is easy, but to be angry with the right person and to the right degree and in the right time and for the right purpose, and in the right way - that is not within everybody power and is not easy

• man is by nature a political animal