What's the difference between: I could never turn down an opportunity to travel. VS

[B45]

What's the difference between:

I could never turn down an opportunity to travel.

VS

I can never turn down an opportunity to travel.

Are both the same?

 

[Rover_KE]

The first is in the past tense; the second is in the present tense.

 

[B45]

What I mean is, why do some native speakers use in the present tense : I could never turn down an opportunity to travel.

How is it different than saying in the present tense : I can never turn down an opportunity to travel.

 

[MikeNewYork]

They have the same meaning.

 

[tedmc]

The first is in the past tense; the second is in the present tense.

Apart from the difference of being in the past and present tense, is it true that 'can' is stronger than 'could', indicative a higher possibility than the latter?

 

[MikeNewYork]

Not necessarily.