All our knowledge has its origins in our perceptions.

And when they encounter works of art which show that using new media can lead to new experiences and to new consciousness and expand our senses our perception our intelligence our sensibility then they will become interested in this music.

You will obtain a vision of matter that is perhaps fatiguing for your imagination but pure and stripped of what the requirements of life make you add to it in external perception.

The comic is the perception of the opposite humor is the feeling of it.

It has always surprised me how little attention philosophers have paid to humor since it is a more significant process of mind than reason. Reason can only sort out perceptions but the humor process is involved in changing them.

It is above all by the imagination that we achieve perception and compassion and hope.

As great scientists have said and as all children know it is above all by the imagination that we achieve perception and compassion and hope.

I just get so fed up with seeing the same things written about me. If I see the words 'ice queen' attached to me I feel like banging my head against the wall. There's this perception that I can only be in a film if I have a glass of champagne in my hand and a stately home in the background.

In a sense words are encyclopedias of ignorance because they freeze perceptions at one moment in history and then insist we continue to use these frozen perceptions when we should be doing better.

Republicans would have preferred the court overturn the health care bill an act that would have underscored Obama's biggest liability - the perception among voters including those who like and trust him that he has been ineffective.