If you only care enough for a result, you will almost certainly attain it. Only you must, then, really wish these things, and wish them exclusively, and not wish at the same time a hundred other incompatible things just as strongly.

Man, whatever else he may be, is primarily a practical being, whose mind is given him to aid in adapting him to this world's life

Success or failure depends more upon attitude than upon capacity.

A little cooling down of animal excitability and instinct, a little loss of animal toughness, a little irritable weakness and descent of the pain-threshold, will bring the worm at the core of all our usual springs of delight into full view, and turn us into melancholy metaphysicians.

Procrastination is attitude's natural assassin. There's nothing so fatiguing as an uncompleted task

As a rule we disbelieve all the facts and theories for which we have no use.

Seek out that particular mental attribute which makes you feel most deeply and vitally alive.