It's presumptuous to say you know how somebody feels.
The same sun which gilds all nature, and exhilarates the whole creation, does not shine upon disappointed ambition.
The only thing necessary for the triumph of evil is for good men to do nothing.
The great difference between the real leader and the pretender is that the one sees into the future, while the other regards only the present; the one lives by the day, and acts upon expediency; the other acts on enduring principles and for the immortality.
Those who don't know history are destined to repeat it.
Nobody made a greater mistake than he who did nothing because he could do only a little.
The hottest fires in hell are reserved for those who remain neutral in times of moral crisis.
Worshiping the teapot instead of drinking the tea.
Sir, there is no Christian nation, thus free to choose as we are, which would establish slavery.
The world is still spinning and so are we and so are you. When the spinning stops, that'll be the time to worry. Not before.
All problems in mathematics are psychological.