| 1 | He enjoys pushing his own limits. | |
| 2 | One is on the limits of adaptation. | |
| 3 | Everyone should challenge their own limits and strive for excellence. | |
| 4 | Long distance running can give people a sense of achievement in challenging themselves and surpassing their limits. | |
| 5 | Even with strong willpower and strength, it's impossible to surpass one's limits. |