No one can step twice into the same river, nor touch mortal substance twice in the same condition. By the speed of its change, it scatters and gathers again.

The content of your character is your choice. Day by day, what you choose, what you think and what you do is who you become.

There is nothing permanent except change.

Big results require big ambitions.

No man ever steps in the same river twice, for it's not the same river and he's not the same man.

Good character is not formed in a week or a month. It is created little by little, day by day. Protracted and patient effort is needed to develop good character.

Dogs bark at what they don't understand.

Change alone is unchanging.

Those who are awake all live in the same world. Those who are asleep live in their own worlds.

What is divine escapes men's notice because of their incredulity.

Those who approach life like a child playing a game, moving and pushing pieces, possess the power of kings.

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.

Insanity can inhibit a person from thinking consciously about his or her thoughts and actions that can result him or her to perform dangerous acts without realizing at all.

I'm lucky I had some teachers who saw something in me.

It is worth while too to warn the teacher that undue severity in correcting faults is liable at times to discourage a boy's mind from effort.

I've had a lot of baptism by fire.

I'm now as free as the breeze - with roughly the same income.

And if I wanted to kill myself, I wouldn't throw myself off a roof. And if I was going to throw myself off a roof, I would put on some pants before I did it.

Stop protesting the hand you've been dealt! Become partners with your life instead of making it an exhausting wrestling match.

So long as the great majority of men are not deprived of either property or honor, they are satisfied.

I think you use the negative things that happen from the year before - and from other years, too - to spur you to do the things you need to do to take the next step.