It is impossible to imagine a four-dimensional space. I personally find it hard enough to visualize a three-dimensional space! — Stephen Hawking Copy Share Image
Therefore, when we arrive in a place and talk to new people about a new image, it is very hard for them… — Christo Copy Share Image
It's hard to visualize someone as a leader, if she is always waiting to be told what to do. — Sheryl Sandberg Copy Share Image
It's hard to visualize the toys you had fifty years ago - all save bear. He's as clear as if he were… — Pam Brown Copy Share Image