Constancy has 3 syllables and the stress is on the first syllable.
| # | Sentence | |
|---|---|---|
| 1. | To the moon we owe not only beautiful full-moon nights and, sometimes, dark new-moon nights — and so many optical illusions on the horizon, if we believe the moon to be a huge ball in the sky — but also the constancy of our weather, the constancy of solar radiation and the basis of our existence: that for millions of years we have been able to live here in reasonable conditions. | |
| 2. | Dripping water wears away a stone not with its strength, but with its constancy. |