Louis Pasteur, the great scientist, said "chance favours the prepared mind", which is a posh way of saying 'do your homework', but it's an excellent piece of advice.
The mind is sicker than the sick body; in contemplation of its sufferings it becomes hopeless.
[Lat., Corpore sed mens est aegro magis aegra; malique
In circumspectu stat sine fine sui.]
We have lit upon the gentle, sensitive mind And lost the old nonchalance of the hand; Whether we have chosen chisel, pen or brush, We are but critics, or but half create.
..bear in mind that, in general, it is the object of our newspapers rather to create a sensation-to make a point-than to further the cause of truth." Dupin in "The Mystery of Marie Roget
The danger of crippling thought, the danger of obstructing the formation of the public mind by specially suppressing ... representations is far greater than any real danger that there is from such representations.