<i>I think, therefore I am</i> is the statement of an intellectual who underrates toothaches. <i>I feel, therefore I am</i> is a truth much more universally valid, and it applies to everything that's alive. My self does not differ substantially from yours in terms of its thought. Many people, few ideas: we all think more or less the same, and we exchange, borrow, steal thoughts from one another. However, when someone steps on my foot, only I feel the pain. The basis of the self is not thought but suffering, which is the most fundamental of all feelings. While it suffers, not even a cat can doubt its unique and uninterchangeable self. In intense suffering the world disappears and each of us is alone with his self. Suffering is the university of egocentrism.

I think; therefore I am.

I think, therefore I am' is the statement of an intellectual who underrates toothaches.

I think I am, therefore, I am... I think.

"I think, therefore I am" vs. "As a man thinks in his heart, so is he."

I doubt;
Therefore, I think
Therefore, I am.

I see;
I take in the colours around me.
The patterns, the lights, the rainbows.
I see the night and the stars that glow.

I dream;
Therefore, I think.
Therefore, I am.

I smell;
The perfumes, the roses.
The stench, the rotten and the putrid.
The aromas and delicacies;
Cooking.

I inhale;
The green, the forest, the trees.
Therefore, I think.
Therefore, I am.

I hear;
The noises. The people, the cheer.
The wails, the screams, the tears.
The rejoicing.
The laughter, and happiness.

I listen;
Therefore, I think.
Therefore, I am.

I taste;
The sweetness, the fire.
The treats, and savoury delights.
The burnt, the spoilt and the tasteless.
The sourness and the bitterness.

I eat;
Therefore, I think.
Therefore, I am.

I speak;
Short messages. Long speeches.
Quiet whispers. Bellowing noises.

I scream;
Therefore, I think,
Therefore, I am.

I feel;
The despair.
The anguish, the fear.
The pricks, the cuts, the injuries.
The joy. The pride. The seething.
The envy, greed, and jealousy.
The cold, the heat and the shivering.
The pain, the sickness, the ageing.

I die;
Therefore, I lived.
Therefore, I was.

"("I think, therefore I am"), the idea that the mere act of thinking about one's existence proves there is someone there to do the thinking."

I am ... cogito ergo sum ... I think, therefore I am.

I am, therefore I'll think

Cogito ergo sum. <i>(I think, therefore I am.)</i>

I doubt, therefore I think, therefore I am.

Je pense, donc je suis; English: I think, therefore I am)

I am thinking, therefore I exist.

But immediately upon this I observed that, whilst I thus wished to think that all was false, it was absolutely necessary that I, who thus thought, should be somewhat; and as I observed that this truth, I think, therefore I am (cogito ergo sum), was so certain and of such evidence that no ground of doubt, however extravagant, could be alleged by the sceptics capable of shaking it, I concluded that I might, without scruple, accept it as the first principle of the philosophy of which I was in search … I thence concluded that I was a substance whose whole essence or nature consists only in thinking, and which, that it may exist, has need of no place, nor is dependent on any material thing; so that ‘I’, that is to say, the mind by which I am what I am, is wholly distinct from the body, and is even more easily known than the latter …